about 8:30, and covered a vast area. they covered about 10 to 13 walking miles, this as a person of interest is out of jail. just hours after the bucks county district attorney announced this about cosmo dinardo. the 20-year-old left the bucks county jail a free man around 6:00 p.m. his father posted bail after he was booked for an unrelated gun charge on monday. the police are scouring farmland in seoolebury township. cadaver dogs helped as they sent testing off to a lab. >> take the biggest one you've seen and multiply it by a million. that's what we're dealing with here. it's not just a single property. we have people combing the entire county. >> reporter: the family of the four missing men gathered near the same ground where investigators worked another grueling day combing through fields. sources say each of the missing men were seen with dinardo before they disappeared, although he is not considered a suspect in the case. neighbors of the dinardo family in bensalem describe cosmo and his family as good people. >> cosmo runs over, grabs the shovel and digs the hole for me. he says, no, i'll do that for you. that's the kind of guy he was. >> reporter: the investigation is far from over as crews look to a third day of searching. >> we're committed to seeing this through to the end, regardless of what that may be. >> reporter: the d.a. says the tips are pouring in, which they say is important as they try to connect the family farm to the four young missing men. reporting live in solebury township, i'm denise nakano, nbc 10 news. >> as news breaks on this investigation, count on nbc 10 to let you know the minute it happens. sign up for our app and have breaking news sent to your phone. some dangerous heat is about to hit this region. >> let's get to chief meteorologist tammie souza. >> we have a heat watch that's been issued for thursday. today is the first of three days that will be in the 90s. it is an official heat wave, but it will be dangerous on thursday, mainly the heavily populated areas, not the rural areas where you have a little more grass and trees that can kind of mediate some of that heat. you have to have pavement that absorbs that heat and more. so this is for thursday and this is for dangerous heat. it will have a feels-like of 105 degrees or above. the actual air temperature somewhere between 95 and 99 degrees. let's go ahead and take a look just for tomorrow where we're going to be headed. we're going to be waking up well into the 70s. look at this. we'll be getting up into the low 90s tomorrow, and tomorrow we'll have a feels-like that is going to be somewhere around 95 degrees. so we're going to cover more of this and we're also going to take a peek at the possibility of very strong storms headed our way when i come back in just a few minutes. new tonight, donald trump jr. has spoken publicly for the first time about the firestorm surrounding his meeting with the russian lawyer. we just heard the new comments from trump in the last hour. let's get right to nbc 10 keith jones in our breaking news center. keith, we've only heard statements and seen e-mails before this. >> donald trump jr. appeared on fox news talking with hannity. he called this a wasted 20 minutes but admits he probably would have acted differently. >> if there's information out there, you want it, then you make what you do with it. >> reporter: donald trump jr. tonight. but in june 2016, his father, then-candidate trump on the trail. his son had a secret meeting with a russian lawyer, natalia veselnitska veselnitskaya, who spoke exclusively with nbc news. e-mails issued by donald trump jr. said he would be speaking with an official in the russian government. >> i just want the truth to get out there. that's partly why i released all the stuff today. >> reporter: but this russian attorney said she didn't have any damaging or sensitive information about the clinton campaign. still, senators both parties say he should testify before congressional committees investigating russian interference in the 2016 election. >> this is a serious situation and one that is a long way from over. >> we want to find out the truth. the american people deserve to know the truth. >> in retrospect, i probably would have done things a little differently. for me this was operation research. they had something, maybe concrete evidence to all the stories i've been hearing so i think i wanted to hear it out. >> reporter: tonight the president defended his namesake saying, quote, my son is a high quality person and i applaud his transparency. president trump said he didn't know about this meeting and only found out about it a few days ago. live in the newsroom, keith jones, nbc 10 news. in washington the health care showdown is going to rev up again this week. senate majority leader mitch mcconnell announced today that republicans will announce a new health care bill on thursday. at least a dozen republicans opposed his previous version which came out before the july fourth holiday. mcconnell says he hopes for a vote next week. a chaotic arrest caught on camera. philadelphia police say they're investigating the video that's going viral. take a look. the video appears to show the officers slam a handcuffed man to the ground earlier monday. people watching screamed for him to stop. police tell us officers were originally in the area to investigate a drug case. there is now an internal affairs investigation into the arrest. a lehigh valley teacher is accused of using social media to send inappropriate messages to students. police say david morgasani sent nude photos to students and also sent a message to one of the victims. he watches your tv and then takes your jewelry. police charged daniel holmes for stealing $10,000 in jewelry from a newcastle county home. now they want to know if he's robbed others in his ten years as a technician. today attorneys for liz castro and grace share filed a lawsuit against parkland school district. that lawsuit claims the school violated the girls' first right to free speech. the girls were accused of being too controversial. the basketball rims are going back up in allentown. we told you last week mayor ed polaski decided to get rid of all but one of the hoops in response to complaints of noise and trash at night. the rims will now be locked at night. some say a berks county attraction is attracting the wrong kind of people. now it's prompting redmoading c council to make changes. the park is where people go to drink and play music. they posted a sign not to be there through 6:00 a.m. neighbors say that's not enough. postal workers say they know which one of their employees was driving this truck when it ran into the tree in rittenhouse. you see the tree fall. it fell inches from the man there on the sidewalk. postal workers are investigating the incident to find out whether to take action against the employee. graduation night at the independence visitors center. mayor kenney delivered the keynote address at the graduation ceremony. the professional program provides low-income young adults with the skills they need to enter the work force. graduating students then have the opportunity to finish their associates degree at pierce college. the stage is almost set for pink to rock the sound in atlantic city tomorrow night. crews work to get the stage ready for the big show. the international superstar is expected to draw a crowd of 40 to 50,000 people to kick off the summer concert series. the doors open at 5:00 p.m. pink will take to the stage at 8:00. you can look up parking and what you can and can't bring on the nbc 10 app. people are buzzing about what really happened to amelia earhart. >> we spoke to an expert who had his doubts of the old theory. now he may have proof that this photoç does not show the famou pilot, and he's going to show us next. how a philadelphia man and his fellow marines used t-shirts and walking sticks to pull off a mountain rescue. and what would you do? a thief points an assault rifle at this clerk, and what he did next, well t has everyone in shock. from strangers to saving lives. how dozens of beachgoers jumped right into action to rescue a family in trouble. this summer, journey into the adirondacks where campers carve through stone. and to the thousand islands, where kids can be kings. if you like big adventure, you'll love new york state. it's all here. it's only here. plan your summer getaway at iloveny.com now to this video right here you just have to see. a man points an assault rifle at an atlantic city store clerk, but the suspect had no idea what would happen next, and there it is right there. surveillance video showing the clerk at pacific food market taking the gun right out of the suspect's hands. the suspect took off. police say that gun was loaded. fortunately, no one was hurt. a 14-year-old burlington county girl went for a babysitting job more than 40 years ago and then just disappeared. but tonight the cold case is getting brand new attention. dekt tiftectives from the day o margaret fox's disappearance back in 1974 are teaming up with a new investigator, mark delazio. he has devoted himself to the case for free. he believes the teen's disappearance can be solved. but why now? >> the answer is why not now? if this woman is alive, somewhere, somehow this newscast will get to her. someone is going to see it. >> police are working with little physical evidence and no dna. no one has ever been charged in fox's disappearance. now to the photo that had everyone talking, this right here. the photo that claimed to show amelia earhart live after her plane disappeared. but tonight doubts are are growing. >> a local man told nbc 10 that he found more proof that debunks this photo. nbc 10 takes a look at the evidence. >> reporter: in his chester county office, nick gillespie showed us what is new evidence about a photo that has a lot of people talking. gillespie claims this picture, which some experts think sheds light on the disappearance of amelia earhart, said this isn't her. take a look. one side shows a photo of a book in japanese writing. gillespie says the caption describes the morph on the islands. the other photo shows the date below. >> the picture was taken two years before earhart disappeared. that slams the door. >> reporter: gillespie showed us the e-mail he received yesterday which led to information originally from a japanese blogger. the e-mail pointed to a book from the library of digital collections. though gillespie claims the book is from 1935, they can't prove the authenticity. >> we try to show evidence based on science. we'll go wherever the evidence leads us. >> reporter: these new claims are being investigated. five marines were awarded the navy achievement medal today for their heroic actions on mt. fuji. >> and one of them is from philadelphia. the group was hiking the mountains over the july fourth weekend when they found a woman lying on the ground hyperventilating and struggling to breathe. the marines used t-shirts and walking sticks to create a makeshift stretcher, then carried the woman down the mountain to get medical assistance. >> we ran about two miles down. i was thinking to myself, wow, missions don't hurt because the adrenaline just kicked in. wow, this is great. >> medical personnel had been alerted and were waiting at the bottom of that mountain. martinez said they were relieved to find out a few days later that the woman was okay. strangers came to the rescue after nine family members found themselves caught in a riptitde in florida. check this out. beachgoers formed a human 80-person chain. they managed to pull everyone to safety. one of the rescued women had a heart attack and is now recovering in the hospital. >> a lot of heroes out there. a heat wave has begun and the nbc weather team wants you to prepare for dangerous temperatures. >> tammie souza stand by with details in this first alert. >> we're watching dangerous heat and we're watching strong storms. we're going to get both of them in the next few days, but thursday will be our target day out there. let's start with the dangerous heat first. this is where the highs will be going. it was 91 today, 93 tomorrow. we could be up to 99 on thursday. the old record is 98, so that is very much in jeopardy. then we'll watch a strong front come through perhaps triggering some very strong storms, and wham, we go down to 83 degrees. that's a huge drop for friday and then we set ourselves up for a much quieter weekend ahead. let's go ahead and take a look at what this first alert is made up of. on thursday between 11:00 in the morning and 8:00 at night, we'll be looking at an excessive heat watch. they may up it to an advisory or warning for tomorrow. it's for everywhere you see colored in red. this is where we have the main paved surfaces so you don't see it out there in parts of berks county. it's where we can retain a lot of heat. the temperature will be between 98 and 99 and the feels-like will be 108. today we're steamy. tomorrow we'll be steamy. we'll be down right almost dangerous, between oppressive and dangerous, what could be 105 and above by the time we get to our thursday. this is where we're going tomorrow. if you're in south philadelphia, 93 for a high. chance for a shower but you'll feel like 95. in kinnick square, you'll feel like 93. let's go to new jersey because if we go to ibsham, you'll be 91 and feel like 92. in harrington, you'll be 94 and feel like 100. now, we don't have anything on the doppler radar right now, but look what we had coming out earlier this evening. it all dissipated. we did have one severe storm in south jersey earlier today. that was basically for wind and hail but nothing much actually amounted from all of that. there is more coming out of the great lakes region, so this is your hour by hour. this is what we're going to be looking at. perhaps an isolated shower in the morning. tomorrow in the afternoon we could see some gusty storms pop up, and then by the time we get into tomorrow night, we'll quiet down. but it will be thursday in the evening and overnight hours that we could see a front come through, the one that will cool us down, and that could also bring us some very gusty storms. put it in the back of your mind. the target day here will be thursday. tomorrow a high of 93 but it will feel more like 95. dangerous heat. that's what we have our first alert for on thursday. strong storms are possible at night, but that 99 high will translate into a feels-like that will be up above 105 degrees for many of us. on friday we drop to 83. that's quite a drop. we could see showers and storms and look at the weekend ahead. fairly pleasant. we'll be looking at the 80s, maybe up to 90 degrees. at this point it looks dry. guys? >> all right, tammie. for a south jersey boy, this is not just any motorcycle ride. how local bikers helped the boy take his mind off his battle with cancer. ♪ ♪ award winning interface. award winning design. award winning engine. the volvo xc90. the most awarded luxury suv of the century. visit your volvo dealer today and get up to $4,500 in allowances. glad he could smile for a moment. the ride of a lifetime for a local youngster battling brain cancer. chase bailer got his wish to ride on a motorcycle tonight. the four-year-old from mshlarlt told his mom he wanted to go for a ride. he contacted local bicycle riders who organized the ride to help her son's dream come true. >> everybody loves chase, and it never ceasesamaze me, everybody that chips in and tries to make things nice for police officer with the police department. john, what you got coming up? >> we have some nice moves from a second round pick. the flyers sign another center. take a look at carson wentz hosting receivers from north carolina. he ldership means to him. that is next. turns out things aren't always what you think they are. take guinea pigs. they're not pigs at all, nor are they from guinea. or take this haircut. i may look all business, but look out... . but there's a party going on back here. kinda misleading, isn't it? well, at carmax, you don't have to worry about being misled. the price online is the same price in the store, which is the same for everyone. even guinea pigs. it's only fair mr. biscuits. only fair. ♪ carmax music sting . hi, i'm john clark from csn. carson wentz not only hosted a charity event, he worked with his receivers hosting the event. they are working on bonding before training camp. carson wentz huddled up his eagles receivers and led them through a workout. carson in his second year is taking over as a leader. >> being the quarterback and everything, obviously the leadership kind of comes along with that and i've taken it in stride. >> reporter: it says a lot. a bunch of receivers mostly new to the eagles flew to fargo to work out with their quarterback. >> they all flew in like, what the heck is this place? but they love it. it means a lot we got so many guys to come out. it means a lot to build this chemistry. we have a number of new faces. >> he was the biggest free agent available. alshon jeffery has taken a liking to his qb. >> great time out here, great people. >> the birds are bonding before training camp, working out and chilling. so do the receivers like fargo? >> we love it out here. >> they love it. check their twitter. they love it. >> i'm a north dakota man. ain't no rap on the radio. country music and redheads. >> that's pretty accurate. the flyers have reassigned l lawton for a second season. former flyer mark recie takes top spot in pittsburgh. marc fultz out for the second year. jason tatum with the ball stolen by jason bolden. finishes very nicely. showing his athleticism. tatum gets the last laugh right here. beats the shot clock. 15 points for him. sixers lose 88-83. phils' reliever pat neshek pitched a six-hitter tonight in baseball. i'll be right back. where are we? about to see progressive's new home quote explorer. where you can compare multiple quote options online and choose what's right for you. woah. flo and jamie here to see hqx. flo and jamie request entry. slovakia. triceratops. tapioca. racquetball. staccato. me llamo jamie. pumpernickel. pudding. employee: hey, guys! home quote explorer. it's home insurance made easy. password was "hey guys." it's home insurance made easy. for years, fios has been promising fast internet to small businesses. but for many businesses, it's out of reach. why promise something you can't deliver? comcast business is different. ♪ ♪ we deliver super-fast internet with speeds of 250 megabits per second across our entire network, to more companies, in more locations, than fios. we do business where you do business. ♪ ♪ got to get ready for some dangerous heat coming. >> tomorrow we'll be hot again, but it's thursday we're mostly concerned aboutme. we'll have a temperature between 95 1kand 99 and we'll have a feels-like around 105. we have excessive heat watches for thursday and we have issued a first alert here just to get you ready the next couple of days. the weekend looks pretty nice. let's get over the hump and be prepared for thursday. >> a warm stretch coming for several days. >> yeah. >> have a great night. >> see you tomorrow. : from studio 6b in rockefeller center in the heart of new york city, it's "the tonight show starring jimmy fallon." tonight, join jimmy and his guest -- miley cyrus,