rudimentary pipe bomb containing gunpowder. a u.s. postal service carrier delivered it to the home. the bomb was designed to go off when the package was open. investigators are focusing on gang members the officer may have arrested as potential suspects. >> these are serious federal felonies and this is an ongoing investigation. these are priority investigations. >> investigators believe the same bomber likely sent a package in east palo alto in october. the victim was someone with gang ties but it was his father who opened it and was hurt by the explosion. postal inspectors are urging people to be careful of suspicious packages. >> if somebody does perceive something that gives them a funny feeling, set it aside and call 911 and notify postal inspectors. >> reporter: the devices from alameda and east palo alto have been sent to the u.s. postal inspection service forensic lab in virginia for analysis. ktvu fox2 news . >> henry we heard the person say if something doesn't seem right, call 911. is there anything in particular you can look for? i have seen examples and there's almost nothing that sets you off. >> you need to take a look at things like the return label. is it someone you're familiar with? in this case the package that went to the officers house had a lot of stamps. does it smell funny? i you expecting a package? if it doesn't seem right, authority say do not move it. labor right where it is and let the authorities handle it. >> residents are returning home after a gas explosion shattered windows and sent debris into the street. it happen in the st. mary's park area of mission and bosworth streets around 10:00 this morning. the neighborhood was evacuated for three hours. pg&e crews dug holes looking for the source of the gas leak. once they found it, they turned off the gas. when neighborhood or -- heard a pop and felt the side. >> i was just getting ready for work. i turned and looked and it was a big boom. >> no one was hurt but the house sustained significant damage. an investigation is underway to determine what happened. fire officials say the garage filled with the often caught a pilot light triggering an explosion. new information on a chain reaction crash. four people from the same family were killed after a suspected drunk driver hit their car and left the scene. the one person who survived as a cal student and the cal baseball player. his father, brother, uncle, and cousin were all killed. rob malcolm tells us that friends, family, and the cal community are showing their support tonight. this is horrible. i have no words. it is shocking. >> reporter: the news was hard to take for cal baseball student manager connor oswald who was thinking of his grieving friend the right- handed pitcher for the cal bears. >> he is the funniest kid. he has the best jokes. he always puts a smile on your face. >> reporter: he was the lone survivor of a crash on i-80 the claim the life of his father, darrell horn. his younger brother, joseph and his uncle 52-year-old troy biddle and cousin baden biddle from bainbridge island, washington. the tragedy has brought the athletic community together. >> people will come together. >> reporter: on saturday night jared was behind the wheel traveling westbound on i-80 when they were hit by a driver left the scene. the impact overturn the vehicle causing fatalities. five cars were involved in the crash which left six injured including a child. that hit and run driver of 47- year-old from sacramento was booked on suspicion of vehicular manslaughter and driving under the influence and felony hit and run. cal baseball coach said in a statement jared is a respected and beloved member of our team as well as an incredible student athlete, teammate and friend. we will give him any and all support as we can as he goes through this unthinkably difficult time. the cal baseball family would rally around gerrit and his family to help them pick up the pieces of their shattered lives . >> we're always here for each other. we will pick him up. >> reporter: the horn family released a statement that said troy biddle and darrell horn were beloved fathers, husbands, sons, brothers, friends and coaches. baden biddle and joe horn were beautiful boys whose loss will be felt by all those who knew them. the horn and biddle family share a deep love for each other. they will rely on that strength to get through this difficult time and they express their gratitude to the community for the love and support. ktvu fox2 news . the chp was out in force over the four-day holiday weekend during its maximum enforcement period. 76 people were killed statewide and more than half of them were not wearing their seatbelts. the chp made 1057 dui arrests during their maximum enforcement period which began at 6:00 in the evening on november 22 and continued through 11:59 last night. a man who escaped from the palo alto courthouse was arraigned today. he was arrested last week. he is being held on $1.5 million bail. his alleged accomplice of 47- year-old was captured yesterday by u.s. marshals as he was leaving the fairmont in san leandro. events could face additional charges including attempted murder of a federal agent. both men were charged with an armed robbery at a verizon store in february. series of wrapped up their third day of deliberations. the jurors who are deciding the fate of josi garcia had a question for the judge. it is not clear what the question was. prosecutors contend he intentionally fired a gun on pier 14 in july 2015 killing kate steinle. the defense argues it was nothing more than a tragic accident. in washington dc minnesota senator. al franken address allegations that have been made against him in recent weeks. can win is in the newsroom with where the senator had to say today. >> reporter: he said he was embarrassed and he apologized. >> i have been trying to take responsibility by apologizing. and by apologizing to the people i have let down. >> reporter: he held a news conference outside his office and said instead of resigning, he was a work to build back the trust between himself and his constituents and he hopes he can be a voice to prevent conduct like this in the future. >> i am going to try to learn from my mistakes. and in doing so, i have been doing a lot of reflecting. i want to be someone who adds something to this conversation. >> reporter: the senate ethics investigation has been opened on his behavior. he plans to fully cooperate. findings are not usually released but when asked franken said he would be open to making the findings of his investigation public. julie? california assembly men said today he is resigning immediately amid mounting allegations of sexual misconduct. he had initially said he would vacate his seat at the end of the next session and would not seek reelection. today he said he has decided to step down after further reflection and conversations with his family, friends, and supporters. seven women have accused him of sexual misconduct. one of his accusers said he groped her at an after work party. in a statement posted today he said in part clearly, the principle of innocent until proven guilty has been temporarily lost in a hurricane of political opportunism. while i am not guilty of any such clients, i am admittedly not perfect. coming up, new developments on a purse for a a major tax code overhaul. a live report for my nations capital. a multimillion dollar campaign to get the bill passed. a few showers last night and a cold morning this morning. i will let you know how cold is going to get and the fog is coming back as well. how thieves are targeting customers looking to buy big online sales and what you can do to protect yourself. >> you get victims to type in their credit card numbers. a look now at the monday evening commute. this is in san mateo bridge. pretty standard for this time of night. heavy, as always. we show you will live look at highway 101. the hospitals on the left heading towards the bay bridge. it is slow going. we will be back with more in just a minute. what if there was only one emoji? now what if there was only one mattress? one is not a choice. choose your mattress with tulo. everything you want in a bed, in a box. this is new video shot today from the amazon fulfillment center in tracy where workers were busy processing a lot of holiday gifts. people have spent nearly $3.4 billion online. >> heather holmes is live in the newsroom. it looks like the shopping surges in over yet.>> reporter: by the time today is over shoppers are expected to shell out more than $6.6 billion which is higher than last year. shoppers are looking for electronics including computers and televisions and toys. not all of those items may end up under the christmas tree. >> they are buying with the anticipation they may not keep everything. they have made free shipping a big part with customers and what appeared to be opportunistic pricing strategies. they have made free shipping and free returns part of their process. a lot of people i'm talking to are getting it to make sure i can get it and so it doesn't sell out and it's the best price. if something better comes along, i can return it is a late. this is a first-year i've heard consumers say their shopping with an eye on returning. >> reporter: cyber monday is a prime time for online scams with hackers out to steal your personal data. fishing schemes and phony websites. >> they make a website that looks like is legitimate but it's not. victims type in their credit cards in your giving them to a scammer.>> reporter: make sure your computer security software is up-to-date and it doesn't hurt to double check if there's a deal that some super good. and more people are using their phones to shop then never. for the first time, where shoppers will make their orders from their mobile devices and tablets and desktop computers. sea it's awfully easy to go on that phone. five u.s. senators have written a letter to uber wanting to know more about a hack of 57 million uber users and drivers that was kept secret for one year. they want to know why uber didn't have better security and why it took one year for uber to reveal the breach. uber says it will cooperate and answer the questions. the stolen information included names, email addresses and phone numbers of drivers along with drivers license numbers of some uber drivers. there is no evidence the stolen data has been misused. uber paid the hackers one house a -- $100,000 to delete the stolen information. rob brought tells us this whopper targeted a goodwill store. >> reporter: people shopping or dropping off donations say they cannot believe someone would pop this goodwill store inner richmond district. >> it is horrible that they would steal from goodwill. >> reporter: it happened on black friday just as the store was opening. two men walked in and one man gestured he had a gun. >> they went to a secure location and they acquired u.s. currency from that store. >> reporter: police will not stay -- say how much was stolen and goodwill would not comment. there is a security guard at the front door. police are looking at surveillance video from the neighborhood. >> it's christmas time in a dangerous situation. it is a very dangerous situation. >> reporter: that the victim was goodwill is disheartening to many. >> a lot of people that shop there don't have a lot of money to spend. why goodwill? >> goodwill sells donated clothing and accessory and funds job programs and services for homeless people and former inmates. >> they should recognize that they help out people more than people realize. you should take that into consideration. it makes the world a better place. >> reporter: police are asking anyone who may have seen anything suspicious to please give them a call. in san francisco, ktvu fox2 news. we got a little bit of rain last night. the rain showers amended to one half-inch. napa was just over to 10th of an inch. santa rosa, the 10th of an inch. it came down hard. we got more rain than that, those are the 24 hour totals. this was over the last 24 hours. >> six or seven inches over the mountains. and now we are clear. it will be a cool night and then we will have valley fog. dewpoints are running in the 40s. we will see temperatures, when they hit a certain dew point temperature, valley fog will form. the fact that napa is 46 degrees, that is really chilly for this time of night. it won't be hard to get down into the 40s. the winds is light . there will be valley fog and then overnight lows will be in the 30s and many places. we will talk about the cool start and the mild day tomorrow. our highs in the low 60s and then that chance of rain on the weekend. two cats were found shot with arrows in the south bay. >> is started with one cat and that was scary but when it happened to the second attack, that becomes a real issue.>> reporter: the search for the person responsible. the day after his debut, is the new starting quarterback? a psychopathic killer who escaped a mental hospital and was captured near the bay area appears before a judge. new developments from a stockton courtroom. a man who escaped a mental hospital in hawaii just over two weeks ago was in court today in doctrine. he was ordered to remain in custody without bail and will be back in court next week. they say he somehow managed to charter a plane and made his way to san jose on a commercial flight. he was captured in stockton near where his brother lives. he has admitted to killing a woman nearly 40 years ago. he was found not guilty by reason of insanity. two cats were reportedly shot with arrows in a willow glen area of san jose. it happened in the same condo complex. neighbors are now afraid to let their pets go outdoors. >> reporter: residents say someone is targeting cats in this condo complex. two have been shot in the last two months. the first happen in early october. neighbors tried to catch the cat but they were able to capture this photo. it shows the shaft of an arrow protruding from this fear.>> i see the cackle be a -- the cackle by with it in his ear and then one day it was gone. >> reporter: a second cat in the willow glen complex was shot. this time it was a neighbors pet in a was struck in the abdomen. the cat was rushed into surgery and is now recovering. >> people are very concerned. when it happened to the second cat, that becomes a real issue.>> reporter: animal services agrees. they've opened an investigation into who may be responsible and what type of weapon they may be using. >> it is a crime to willfully harm and animal. that is something we treat seriously as an agency.>> reporter: both cats are expected to survive. neighbors are scared to let their pets out and they can put up signs to warn others. they are being extra vigilant and they just spotted another arrow just steps from another person store. >> we found another one lying in the street. it gave me the chills knowing this could hit a child. >> someone right in this area. it's happening very specifically and that's terrifying. >> reporter: neighbors hope the person responsible will be caught. anyone with information call san jose's animal services.>> reporter: ktvu fox2 news new developments in the republican purse for a major tax code overhaul. struck out lawmakers are not the only ones talking about tax reform. i will tell you who is saying what in just a minute. a drone operator under arrest and accused of flying his drone to drop flyers over crowds at the coliseum and levi stadium. authorities are warning others to not follow suit. a royal wedding is now in the works. details on how their union is breaking barriers and more ways than one. ktvu fox2 news at 6:30 is next . hi, we're alaska airlines, and we give you more than just peanuts. we give you all sorts of amazing stuff, like european biscoff cookies. hundreds of free movies and tv shows, that you can watch for free, right on your phone. and our rewarding mileage plan that gets you to over 900 mind-expanding destinations. if you want peanuts, check out our prices. alaska airlines. that's how we fly. a gas explosion ripped through a san francisco home today breaking windows and sending debris into the street. it happened on 10:00 this morning in bernal heights on mission in bosworth streets. 19 homes were evacuate it for three hours. officials say it appears the garage filled up with gas and was ignited by the pilot light on the hot water heater. we have learned that a veteran police officer was the target of a dangerous mail bomber. a stamped foot long package with the officer's name on it was delivered to his home on bay farm island on friday. the officer was at work and his wife opened the package and suffered hearing loss and minor burns. investigators are focusing on gang members from the officer may have arrested. a man from sacramento has been booked on suspicion of felony hit and run and dy on a deadly crash on i-80. four people and one car were killed and six others were seriously injured on saturday night. account baseball player was one of the survivors. his father, younger brother, uncle and cousin were all killed. the cow baseball program is trying to offer him support to help him through this. the u.s. senate is still debating what could be the nation's biggest tax code overhaul and more than 30 years. special interest groups are