Officials tonight are scrambling to find the motive. Typical monday morning rush hour in washington. Turned into chaos. Tm officials said aaron alexis, 34yearold former navy reservist, made his way that building 197 at the navy yard. Multiple shots fired. Multiple people down. Reporter dc police said it was 8 20 am when the first call came in of multiple victims per there are of 5 Story Building and started shooting down from the walkway in a food court below. 5 people shot attempting to bring outside. Reporter navy yard was on lock down for more than 6 hour hours. Survivors were told to hide in place. We put chairs and then tables up against the door. Tonight the focus the tourns motive. Fbi pleded for the public help with information about alexis. No piece of information is too smawchlt we are learning everything we can about his recent movement. Contact and associates. Military records show he was in the navy from may 2,000 7 to january 2011. He serve the at Naval Air Station in ft. Worth, s. He was apparently charged by police there with discharge ago gun in public. Tonight alexis family was questioned by the fbi at their home in brooklyn as authorities try to determine what if made him commit a horrific crime. He had a gun but not shoot people. Is. Reporter the people are confident there was only one shooter. Aaron alexis had a security clearance to get on to the navy yard and Law Enforcement officials tell us it appears he didnt force his way in. Reporting live in the navy yard in washington, abc news. Now become to you. Thanks very much. We know about the gunman and karen touched on this. Lets go through it. 34yearold aaron alexis of brooklyn native recently lived in texas working as military contractor. He served in the navy from 2007 until 2011. Wall street journal reports he was kicked out after accused of illegally discharge ago firearm in the texas apartment. Nearly hit his neighbor one floor apparently who climbed of loud noise. Seattle police say he was arrested tl after shooting out tires in what they call anger fueled blackout in 2004. Alexis father told Seattle Police he suffered ptsd after helping with rescue attempts medley following the september 11 attacks. Alexis apparently had family who lived in this South Seattle home. Neighbor says she thought she saw him at the house just 6 months ago. Now because of the shooting senate cancelled monday sessio session. Only staff will be allowed in Senate Buildings until tomorrow morning. White house also cancelled an event to honor latin music stars scheduled earlier this evening. Washington National Space bowl game postponed until tomorrow. Stadium National Park is just a few blocks from the navy yard where the tragedy happened. President obama has ordered flag at all federal facilities to be flown at half staff through friday as tribute to the victims of today navy yard shooting. That includes the flag at the white house as you can see. Now before we mav on i remind to you stay with us for continuing coverage of the navy yard shootings. Well update as necessary during this newscast and at abc 7 news. Com. Our web site follow us on twitter at this web site for any breaking developments and then of course join us on channel 7 at 11 00 oclock for updated broadcast as well. Well this evening burst of pop heard right outside the white house. Turned out to be fire crackers. Secret Service Agent tackled a man on the sidewalk put him in handcuffs. Man was taken into custody but no charges have been filed. White house was locked down for about half an hour during this entire time. San Francisco Police say they broke up prolific car theft ring today in the city bay have you district. That happened after wild chase when patrol car got rammed. Hears more now from vick lee. Reporter police tell us the 30yearold suspect came out of a house here on the 1700 block of lasalle avenue. Officers confronted him when he got into a parked stolen accura under surveillance. He rammed a patrol car. Drove over the sidewalk hitting a house. Second floor kitchen heard a loud bang. I thought it was a gun or something but its not. They hit the house and then when i look out the window my car got hit. Man took off running while dropping a gun from his waist band. When officers searched the man they found an important piece of evidence. They located 15 pl vehicle keys. So they are the vehicle key that are shaved so you can enter almost any vehicle. While this was happening female driver got into another stolen car here leading police on 10 minute chase in the bay view. She dumped the car and escaped on foot. Police believe the 2 are part of a stolen car ring and the block of lasalle avenue is their stolen car lot. They said they picked up at least 40 stolen vehicles on this street recently. Today that included the stolen motorcycle. This man says this stolen vehicle area may explain why so much loitering in the middle of the night. You should seat people standing out her at 3 00 oclock in the morning. What are they doing. No shots fired during the incident. This the is 7 news. Today is grieving mother is talking about her son. She was passenger in car that crashed on mill crest avenue on friday. About 7 00 p. M. The driver of the car survived. Air lift the to John Muir Medical Center with major injuries. Today the gravy counselors on the campus of Benjamin School consoling his friends. Benjamin mom also visited the campus and she has a message. Pl teenagers driving these cars. Slow the cars down because tl cars can kill and harm people. Its terrible. That i have to lose a child like this. Reporter investigators are lacking into whether speed was to blame. Second vehicle was involved in the incident and may have been speeding. Driver of that car turned himself in to authorities. 10yearold antioch boy continues to recover after being attacked by at least one of his neighbor pit bull. Today hunter kilborne there he is went back to thank the firefighters t. Carolyn has the story. Look good. Remember us. We remember you. Reporter last time firefighters with the Contra Costa County fair Protection District saw hunter kilborne, they were responding to a pit bull attack. One or 2 of his neighbors dogs ripped the 10yearold boy face last mont month. He spent 9 days in the hospital and has had 2 surgeries including a skin graft. These pictures were taken by his mom. Today hunter and his family dropped by the firehouse to say thank you. What do you remember about that day. That they helped me out like a ton. So im just happy. That they came. Reporter he gave them a gift of red vine. They gave him lego to build fire truck. Reminds me why i do this jo job. We are happy to see him doing well. Reporter firefighters say reunion like this with people they rest caw dont happen very often. We can kind of get to close and healing process begin not just for him but what we see. Reporter visit included a vip tour of the station. And ride around the block on a rig. Hunter back in fourth grade parttime while he heals both physically and emotionally. The pit bull are in county custody and may put down. The owner provided these pictures. Fichlt mad dog is not a nice dog. I have been having a bad day. We love you glad you are okay. Tour awesome. Strong kid. Reporter owner of the pit bulls are fight to go save their dog. Theres a hearing here at antioch city hall tentatively scheduled for next week. In antioch, carolyn tyler, abc 7 news. Pl both sides of the bart dispute say tonight that they are hoping to try to get a settlement but bart urge to us prepare now for a strike and it could last for months if it happens. And not much time to reach a deal. According to bart only three days of talks are scheduled this week. Only one session scheduled for all of next week. Monday tuesday and wednesday sessions on the calendar for each of the two two weeks after that. But bart points out that one of the 2 big union isnt available on october 9th. Thats the day before that 60 day cooling off period ends and strike could happen. Transportation reporter heather has the lates latest. Bart chief negotiator says a lot of what is happening now business the immediate 80tor going back and forth between the parties hoping to find something to break the impasse. We continue to meet. Met again tomorrow morning. All day tomorrow. I think as long as we keep meeting theres always the hope that something will happen and make, get a breakthrough somehow. Brick through is what is needed. Part basically done negotiating having put the last offer on the table the night before the cooling off began. The not sure bart is trying look over any proposal. They said the prosecute postal they offered us is their proposal. Reporter the talk this afternoon were on what is known in labor negotiations lingo as the general. Wages. Pension. And medical benefits. All the talk on safety and really at the end of the day it comes down to money. Reason why we didnave a deal is because the labor union are still asking for a pay increase. Not focus on strike but negotiations. Reporter but bart is planning for a strike nonetheless. Saying it believes the union are willing to be out for a month. Bart has about 12 manager former train operators who are certified to drive train and would and need refresher to get up to speed. For new certification the cpuc requires a 16 week training program. If there is a strike come up with a plan if we need to turn to that. About very, very limited skel tan, Life Line Service to keep the bay area mobile. Doesnt take someone to sit in a cab and operate the train. It takes support staff to pl make sure that the train control system are working properly. Electrical system working properly and l track system working prp easterly. Reporter bart commuter says if there is a strike she will use buses so she has no problem with manager operating train. That makes sense. This sounds like the realistic thing that should happen. Does it make you nervous. No. The. Reporter about the negotiations schedule between now and the earliest strike begins october 11 only 10 days. Doesnt sound like much when you consider what we have been through on the negotiations but thomas hawk chief negotiator its a god awful amount of time they have already spent on these negotiations. They should be able to come to an agreement. In oakland, abc 7 news. Well see. Men time Governor Brown is you remembe remembering the 2 sides of the bart dispute to get relevant and avoid a strike. Fichlt think if bart and union better sit down. Because it would be a real problem. What do you do if they don dont. I would exercise my power of cool off period. Within the framework of the union that says both sides talk together but if they dont agree cant good on strike but i urge them strongly not to d i dient to see a strike. I urge the parties to get real. Brown was prepared to introduce a making it illegal for birth to strike but advised by the legislative leaders that that would not pass. So it wouldnt go if i where. Moving on. Rescue effort continue tonight in colorado. Up next. Extreme flooding now spans an area twice the size of rhode island. Plus p. M. Aircraft on this bay area is real life saver spencer with the weather. In the accuweather forecast center we see sharp changes in center we see sharp changes in our weather. Temperatu is. Rescue effort continue tonight in colorado where a flooding problem spans 15 counties twice the size of rhode island. 8 people have been killed, at least. As martha reports from boulder, hundreds of people still stranded and the rain still falling. New image of the continued devastation in colorado. Water carving its way through bridges and roads. Isolating houses and entire towns. Residents trapped. There is about 1,000 residents that are up in the various isolated areas that need evacuation. Reporter rescue crew helicopters grounded by rain sunday spending the day making their way to places where homes were toppled and swept away. Mudits own messrs. Less mark. My building split in half with huge boulder in it and a tree. Between the 2 parts of the building. Its incredible. Reporter saving strand from towns like rooins, colonel republican and democrat oshtion searching for the more than 400 people state wide still unaccounted for. At this point largely mathematical exercise. We dont think the number will be nearly that high. Already more than 11,000 people have been rescued. And with each person who so gritfully stepped on to dry land taking what little they could say that number climbed but officials expect the death toll will too. In so many places including here water still raining. At least the weather is clearing. Filly after 7 days of rain it stopped this afternoon and sunshine is in the forecast for the next few days. Abc news boulder, colonel republican and democrat 0. Next disaster in the bay area there is a brand new marine corps aircraft that could proof invaluable in crisis exploratorium First Responders now being trained in its use. The Cornell Bernard has the story. San francisco firefighters and paramedic are always prepared for any emergency. Now they get some extra training alongside of the marines and osprey aircraft that could play major role in the bay area. In the event of an earthquake. Our firefighters paramedic need to know how to load casualty on to the aircraft and rescue personnel should something happen to the aircraft. Marines have been using this since 2007. It can carry as many as 25 people. Hybrid aircraft that lands takes off like a helicopter but cap fly as fast as a mraechbility. Should that patient that needs to get evacuated need to go farther away then this aircraft would be a key capability to bring to that, real benefit to the osprey is the range speed it brings to the table. You can see the aircraft up close during the week of october 7 in San Francisco during a scaled down version of fleet week that has been minimized due to the federal sequester. At San Francisco international cornell, abc 7 news. Wild device. Could prove invaluable if needed in an emergency. Back to work after glorious weekend. Spencer is here with i cant believe its the last week of summer. Can you believe that. Fall officially arrived and we have if 6 more days of summer. 5 more days. Give you a look whats going on here live doppler 7hd mainly clear skies. A little bit of low cloud covered near the coast line but mainly clear inland and out over the bay. Heres roof top camera on top the of embarcadero current temperature readings 59 in San Francisco. Cooled down in a hurry in the city. City oakland, redwood city 64. North gattoes Half Moon Bay emeryville camera west back to San Francisco 64 and santa rosa 63 and napa novato 69 and warm spot 60s also in concord livermore. One more live view from sutro tower out over San Francisco on this clear evenin evening. Forecast feature are these. Turning cooler tomorrow than today but sharply warmertty thursday fall arrived on sunday. Now pull back and give you a look at the pacific satellite image. Weak little system that is moving in our direction. Precipitation but it drops temperatures tomorrow. If we see few low clouds down along the coast line and across the bay. Stronger sea breeze develops and moves by and tomorrow that will drop our temperatures below the seasonal average. But we warmup shortly after. That continue animation wed thursday friday and storm system headed towards the Pacific Northwest and trailing cold front will weaken and sweep through the bay area friday plus if it will be a little bit of shower activity and its possible that shower or 2 could develop northern most part of the viewing area about by saturday morning. Most of that rainfall precipitation will stay to the north. Overnight tonight we see areas of fog at the coast and locally across the bay. Low pressure will be mainly in the upper 50s then tomorrow look for sunny skies by afternoon in the south bay. High pressure mainly in the low 70s. 72 at santa clara. 73 san jose up to 78 in los gatos and morgan hill. Peninsula high from 70 at san mateo to low 70s at palo alto mountain view. Low mid 60s on the coast and pacifica at Half Moon Bay and breezy on the coastment did you want San Francisco high tomorrow of 67. 64 in the sun set district. Up in the north bay see high mainly in the 70s although calistoga might get lucky and top out at 80 degrees. On the east bay high of skype at Oakland Hayward 73. Fremont inland east bay milder but carolp today. Breezy with high up to upper 70s for most of the inland east bay up to 80 at walnut creek. Heres accuweather 7 day forecast. Warmup rather significantly on wednesday thursday inland high thursday up to 90 degrees. Cool down heading into the weekend. Coolest day is on saturday. Sunday the fall arrives within 44 p. M. Autumn equinox. Thanks very much expense near still to come on 7 news at 9 00. Will weless the americas cup and hes behind ready . Happy birthday its a painting easel the tides coming in this is my favorite one. Its upside down. Oh, sorry. woman vo it takes him places hes always wanted to go. Thats why we bought a subaru. announcer love. Its what makes a subaru, a subaru. Forbes magazine rae leased the richest people. Gates has net worth of 72 billion followed by warren buffet worth 58 billion and or kill ellofson of the bay area had 41 billion unchanged from last year. Other bay area bail nair top 100 larry page and cofounder of going el. Facebook zuckerberg top 20 this year and laura powell widow of steve jobs. 7 other bay area billionaire among the top 100. If forbes 400 list. Dont expect to see billionaire ceo awful son with crown for too long if the team lasts this week. Thats because he will be kicking off oracle open world this weekend and throwingni annual Appreciation Party wednesday night. Giant ferris wheel set up at Treasure Island forth event. Maroon 5 and black pea will perform. Oracle opens sunday. Aboutest convention of the year in San Francisco. 4 47,000 are expected to attend this year. We have more ahead tonight on 7 news at newspaper 00. Update on the mass shooting in our nation capitol. Now beginning