student is arrested accused of killing her newborn baby after hiding her pregnancy for nine months. then a man is slashed in the back while entering a subway near penn station. what we just learned really happened here. >> but first, rain, whipping wind, even snow. get ready for a dose of weather whiplash. >> and good evening, everyone. i'm sibila vargas. mother nature is about to deliver a april fool's surprise that is no joke. >> by sunday it will feel like 25 degree . here's janice huff. >> yeah, mother nature always seems to get the last laugh with us. here it is april and we're thinking we're going into that warmer weather and we got that today with some thunderstorms. that's moved on now. a couple of clipper systems coming in out of canada. the one over the great lakes and the other one will both come into the area with snow, rain, wind and bitter cold like it's it will be cooler tomorrow. there's still some showers around. so don't put your umbrellas away. but the worst of the wind and cold will be saturday night into sunday morning. we'll start to watch one of those clipper systems get a lot closer on sunday, overnight it will bring some rain to start, but then it will change over to snow. north and west, you could see some light accumulations of snow. the city might see a dusting. even parts of connecticut through early sunday morning. then it's out of here and moving on, but not the cold. the winds will gust as high as 50, maybe 60 miles an hour on sunday morning and that will bring our windchill down to single digits. teens and 20s during the day on sunday. we'll take another look at this cold air and talk about the season openers for baseball next week. looks like a little bit of rain coming up. i'll have that in a few minutes. back to you. >> you can track the weather all weekend long. you can look at the latest forecast, check our out sending out any weather alerts you need to know about. >> disturbing details tonight in the death of a newborn baby girl. police have just arrested that child's 20-year-old mother accused of killing the infant after hiding the pregnancy for nine months. we're live with more on this deadly secret tonight. >> reporter: and rob, police tonight told us a story of a desperate young woman who hid a full term pregnancy. her family did not know. the baby's father did not k, until she was charged with murdering her own child. she was a mother for just a short period of time, nassau county police say she suffocated her newborn baby girl after giving birth in her bedroom yesterday morning. >> she delivered h baby herself. as far as we know it was a healthy baby until it suck comed to asphyxiation. screaming and found her bleeding profusely and called 911. the doctor suspected she had given birth though she denied it. detectives found the baby in a black plastic garbage bag at the back deck of the house. >> there's some point where the mother was -- >> she was a student at nassau community college and had a part him job at a car wash. why she hid her pregnancy and allegedly murdered her own child is not clear. that. i don't think i'll every know the answer to that. >> reporter: police reminded us tonight of the safe haven law. she could have taken her newborn child to a hospital or a fire station. no questions asked. it's unclear whether she knew about that law. she is now being charged with second degree murder and is scheduled to appear in court reporting live from minneola, news 4, new york. and a new story is emerging surrounding the slashing of a man near penn station today. this happened just after 3:00 this afternoon. as that man was entering the 1-2-3 subway station. an area bustling with commuters heading home from work. we're live in midtown with how police say the attack really unfolded. >> reporter: tonight law enforcement sources tell us this was apparently a bad drug deal and that the suspect and victim were fighting over the price of drugs. still, for folks who use the subway every day, seeing police here and blue tape was alarming. >> it's like horrible. that's really scary. >> it is disturbing. >> it's really crazy. >> growing concern in new york over a growing problem, slashings. >> my mom texts me all the time, be careful, look what you're doing, keep one hand in your bag. >> reporter: on friday alone two men were slashed. the latest attack near the heart of the city. just after 3:00 in the afternoon a man about to go in the subway was slashed across the back. law enforcement sources now tell us it appears to be a bad drug transaction. an argument over the price of the drugs may have led to the slashing. police looking for a man and woman in connection with the attack. early friday m ny the individual. >> the city is dealing with an uptick in slashings. a 20% increase over the tame same last year. they're rolling out an initiative to focus on these crimes. >> is it something you think about more? >> every day. every day i pay attention to what i'm doing. i don't listen to head phones, try to make sure i'm not the next victim. >> reporter: a lot of commuters feeling that same way tonight. no arrests have been made in these completely unrelated attacks and both victims are expected to be okay. thank you. well, things got a little heated tonight outside roper logic's concert while fans were waiting to get inside a music venue called term noll 5. a dumpster was fully ablaze right nearby. firefighters arrived around 9:0030 and brought the fire under control. the cause is under investigation. and now to an update to an i-team exclusive. inquiry with ten officers. one of the supervisors is talking to investigator sarah wallace about the allegations. >> reporter: an nypd lieutenant ten active cops who are suing the department over alleged quotas which are banned. he did not want to be identified. >> they're telling the truth. >> which is? >> that there was a quo that system within the nypd. it's a constant pressure. when i get called into the captain's office. >> reporter: the officers told us that minority neighborhoods are targeted. >> they tell you this to your face, black and hispanics between 14 to 21, they must get stopped. >> so people are targeted? >> yes. >> and who's targeted? >> mainly in minorities area. >> the lieutenant claims it's all about monthly activity reports. smoo the sergeant addresses it in roll call and the cops have to go out there and bring something in. >> what happens if the officers don't get them? >> they're punished to the point >> they'll transfer you, they will threaten to give you a bad evaluation which they do give you a bad evaluation. >> reporter: officials insist they are responding to conditions in neighborhoods and the only push is to reduce crime. community activist tony herbert watched the interview with the officers as well. >> i think the whole presentation that you have done actually opened up that you know, that whole can of worms that everybody said i told you so, because that's what black and brown people are looking at -- looking upon as as money generated for the city of new york. >> when they say this is smarter policing and all of that? >> no, that's just nonsense. this needs to stop because they keep talking about community policing. this is not community policing at all. >> the city has asked a judge to dismiss portions of the lawsuit that deal with quotas and alleged racial discrimination which is officers are also claiming. a decision could come any day. from the news room, sarah and new tonight a man will spend the night in jail for allegedly tampering with red light cameras and they say it is not the first time. this is a look at bryan valentine in a video he posted online last year. police say shows him tampering with red light cameras on long island. he was arrested again tonight, this time police say he was covering cameras in smithtown with plastic bags. he'll be in court tomorrow. well, a stark warning from president obama about the threat of isis getting its hands on a nuclear weapon. simply put, the president said it would be catastrophic. mr. obama made the comments today at a nuclear summit in washington saying terrorists would only need an apple's worth of plutonium to kill hundreds of thousands of people. just last week we learned isis bombers in brussels stalked and video taped a nuclear scientist. also only 23 out of 130 countries have secured the nuclear material in their hospitals, universities, and power plants. these madmen ever got their hands on a nuclear bomb or nuclear material, they most certainly would use it to kill as many innocent people as possible. >> very scary. while acknowledging the threat president obama did assure that the risk of the wrong people getting nuclear weapons has been reduced significantly. a brussels airport could reopen as early as sunday. no passengers have flown in or out of the hub since the deadly terror attack ten days ago. much of the departure hall is bad di damaged but the airport says it's ready to restart flights. when it does reopen 200 more officers will be patrolling the area. coming up here on news 4 new york, she is being hailed as a hero, a nanny on long island risking her life to save the baby in her care, the selfless act that put her in a coma. then new details about that knife found at o.j. simpson's is it connected to the murders of nicole brown simpson and ronald goldmann? city. the celebrity to the rescue new tonight an elderly woman is violently attacked in the bronx. it happened this afternoon in co-op city. investigators say that this woman followed the 103-year-old victim up to her apartment on bellamy loop. while in the hallway she knocked that woman to the ground with her purse and the food she had just picked up from a local community center. the victim refused medical attention. anyone with information should a nanny is being hailed a hero tonight. her actions saved the life of a baby boy but now she is laying in a hospital bed in a medically induced coma. she pushed his stroller out of the way of an on coming car. the 9 month old was unharmed but the vehicle ended up striking her and pinning her underneath. >> the nanny, when she saw the vehicle coming at her, she actually pushed the carriage out of the way and then she took the impact of the vehicle on herself. >> i thought that was incredible, just the fact that she got the baby out of the way. >> incredible indeed. police say the nanny had been walking in the crosswalk with the traffic light but the 70-year-old driver didn't see her at the time. the driver is not facing any charges. >> one of the biggest mysteries of the o.j. simpson murder case will remain a mystery. the los angeles police department has concluded that a knife found at the former estate was not linked to the crime. they were testing a knife found by a construction worker more than a decade ago. stabbing deaths of his ex-wife and her friend, but he was found liable in that civil trial. the murder weapon has never been found. tonight the family of the ex-wife is asking a judge to declare her legally dead. she was last seen 34 years ago. the family needs a death ser tiff kate to file a wrongful death lawsuit. they believe the new york real estate realtor killed her. you could be paying lower airfares and here's why. the faa is following -- or is allowing more flights to come in and out of newark every hour. that of course will lead to more supply, more competition. that leads to reduced fares. the limits were implemented back in 2008 to reduce congestion and delays at newark. these changes will begin at the end of october. >> you might want to check your pantry. that you need to know about. new york based roland foods is recalling 21,000 cans of roasted red pepper strips. the pepper could contain glass fragments. the recall only applies to 8 ounce cans marked with lot numbers 427, 428, 432 and 437. no injuries have been reported from the glass. tonight a casting change. just days before the opening of the show on broadway. one of the leading actors of para mour has left only 16 days before the previews start. producers say that bradley dean left over a quote, creative differences. he'll be replaced by jeremy kushner. it's the first production created specifically for broadway. the change will not push back the beginning of previews or the may 25th opening. >> so he won't be taking center stage, but you know what will be taking center stage this >> awful weather. >> that depends on your perspective. but definitely if you're in the mode of summer/spring, you're not going to be happy about this weekend when it feels like it's the middle of january/february. we'll get to weather coming up. many the meantime, today is world autism awareness day. autism speaks and autism awareness. the temperatures are still pretty mild. it's just blow 70 degrees in the park, with cloudy skies but we are expecting some major changes from this point on. don't put the umbrellas away yet, because there will still be some showers hugging the coast tomorrow as that storm system hangs up there and just gets stuck for about 24 thours. after that a high impact wind event saturday night into sunday morning when we could see damaging winds and power outages scattered across the area similar to what we saw earlier and then snow squalls. north of the city and maybe even over the city in parts of long island too early sunday morning. in the meantime the high wind watch is in effect starting tomorrow night into sunday morning for the wind damage potential. we may see gusts between 50 and 60 miles an hour. there go the thunderstorms from earlier this evening. the rainfall totals were pretty spotty around the area, just depended if you dot one of those heavier showers like caldwell was just around 4/10ths of an inch of rain. meanwhile central park barely saw anything to measure. same thing in new work. so the heavier rain missed the city, but i got some other areas. temperatures right now, upper 50s to the mid-60s near howell and 64 at red bank. you're cool all day long. you're still in the 50s, but 57 in sus sesz. sexussex. now more of a northerly wind but it's very light right now but starting tomorrow afternoon the winds will increase. noegts the notice the numbers going up here. gusts saturday evening and sunday morning we start to see those 50-mile-per-hour gusts especially near the shore. so it's a big difference in terms of your weather from day-to-day. upper 50s with showers on saturday, intense win, with temperatures only in the 40s on sunday and looking ahead to monday, that's the yankees home opener. we've got rain showers unfortunately on monday with a high near oo. same thing for the mets. they've got showers for their forecast for their home opener too with a high of 52. we'll keep you updated all weekend long on these big changes in the weather. >> i think they start the baseball season a little too early. >> that's what i said. but that's not what the fans say. >> i guess not. >> especially if you're a mets fan. we've got plenty of baseball coming up. can't start this base billion season soon enough. days away. big news for both of the local teams as well. not just the mets who had a great outing, but the yankees latest and andrew miller, where will they pitch come opening day? and on the eve of the final four, we'll hear from cinderella syracuse, who would rather not be called cinderella syracuse. >> i wonder why. >> all right. here's what jimmy fallon has coming up tonight. >> my guest tonight, plus we have governor chris christie, and thank you notes. slow, building african-style music it's the little moments that make the biggest waves. kalahari resorts & conventions the world's coolest indoor waterparks. for the spring break adventure of a lifetime, visit a quick correction to a story that we told you about at the top of the newscast. a man was arrested for allegedly tampering with red light cameras, but we showed you video of a different man arrested for a very similar crime last year. the man in that video that you saw was not bryan valentine which was the man arrested tonight by police. >> a bull ran wild through the streets of queens this morning. stuart seen here, picked it up from animal care and control and took it to farm sanctuary shelter. the bull was headed to a slaughter house when it escaped and ran over to the nearby college where it charged one man, ran him over. police finally caught up with the bull, lassoed him and it looks like he's going to be okay. he's going to go to that shelter >> he got out of the slaughter house. take care of him. >> john chandler is coming back good morning, this is your captain speaking. it's a beautiful day with sunny skies and a light tailwind out of the northeast. blue skies smiling at me nothing but blue skies do i see the new jetblue card. it's like having jetblue with you wherever you go. get three times points on jetblue purchases, two times at restaurants and grocery stores, and one time on all other purchases. fios is not cable. we're wired differently. in the last 10 years our competitors have received a few awards. but we've received a few more, including jd power who ranked us highest in customer satisfaction for the third year in a row. only fios has the fastest internet on the most awarded network. now get super-fast 100 meg internet tv and phone for just $69.99 per month, online. cable can't offer internet speeds this fast at a price this good, enough to lure jackson from his wood stock vacation. injuries could end both of their seasons. just means more minutes for the likes of galloway. he took full advantage tonight at the garden. in the first half knicks down one galloway gets the shot to fall at the buzzer. knicks go up one at the break. third quarter, a first nba start. seraphin for the flush. galloway, 18 points. 14 in the fourth quarter. grant finished with 14 points and four assists and the knicks had five players in double figures. 105-91 the final. they split the season series with brooklyn. the yankees and mets finalized their opening day rosters. medication for a blood clot. mets were in las vegas for a dress rehearsal. he struck out six for the mets. the mets end the spring with an 8-1 victory. up next, harvey gets the ball to open the season sunday night in kansas city. the yankee's fifth starter but he added for now. and that pen may have the services of andrew miller after monday's opener. the yankees have cleared the lefty reliever for duty. miller fractured his right wrist on wednesday and the yankees beat the marlins 3-2 and they wrap up their spring tomorrow afternoon. >> college hoops down to the final four. things get underway tomorrow with villanova and oklahoma and then the second game, two legendary coaches, two signature programs. today syracuse practicing in houston. they don't answer to cinderella, not with head coach knowing this spot quite well in his fifth final four. they'll size up another number one, north carolina tarheels tomorrow night. >> they're a tremendous team. they've got, you know, tremendous size and depth and they can hurt you inside or outside. >> the fact that this is our 19th final four doesn't give us any edge. the fact that this play in syracuse and we've already played them twice doesn't give us any edge. tomorrow's difference maker is going to be the best on who plays the best on tomorrow's game. >> and suiting up for the shell houston open. howell the iii making you jealous. 340 yard drive set him up for this. he's tied for 8th. putter on 8 but he is well behind hoffmann heading into tomorrow's third round here on nbc 4 and from long shot to no shot. tiger woods announced tonight he will not play at the masters next week. he says his back is just not up to speed yet. >> all right. and that will do it for us. the tonight show is coming up next. >> today in new york begins at 6:00 a.m. good night and have a great weekend. [ cheers and applause ] >> steve: from studio 6b in rockefeller center in the heart of new york city, it's "the