the search is on for a san francisco man f-b-i agents say could be armed and dangerous. and is now on the run. the wanted man is 42-year-old ryan kelly chamberlain. agents say he's being investigated for possessing explosives. we began our team coverage on the investigation and the developing details of the suspect with kron 4's alecia reid. she spoke to f-b-i officials earlier today and has the latest in this criminal investigation our team coverage continues now. scott rates joins us.

scott. you've been learning more tonight about chamberlain and his background here in the bay area. you spoke with someone who actually worked with him? obviously so many disturbing details about ryan chamberlain but who is his website portrays him as being a successful political figure in the bay area for many years today i talked to a man who has not only met chamberlin but who has also worked with him

neighbors tell us the chamberlain lived in the apartments for about three years obviously so many disturbing details about ryan kelly chamberlain. today kron 4 caught up with people in the russian hill neighbor where chamberlain lived. one woman in particular who lived in the same building as chamberlin she says she has been inside his home.

to stay on top of this developing story go to kron 4 dot com. and if you are on the go make sure to check the kron 4 app for the latest details on the search for ryan chamberlain. one devastated mother's cry to stop the violence. jane liu spoke at her son's memorial in fremont today -- less than two weeks after weihan "david" wang was murdered. wang was a computer science major at u-c- santa barbara and is one of the victim's of the isla vista killing spree. investigators say he was one of george roger's first victims. kron four's philippe djegal attended the emotional ceremony. sot- "this is the most difficult time in my life. the hardest thing for me is to be alive."

jane liu says she would trade places with her son weihan david wang , if she could. sot- "you were our joy. we did not give you big house, fancy stuff, but we have given you all our love." hundreds from the community where david lived and graduated from fremont christian high school aso shared that love by sitting the pews of harbor light church, listening to stories about david. his father charly, says david was a straight-a student. and, through an interpreter, says life won't be the same without him. sot- "i think as far as our family is concerned, truly, our sky has fallen." david's parents say he had a passion for life, his friends and basketball. born in china, he immigrated to

canada, then the united states, where he was destined to be a successful man. sot- "your dream was to open a computer company after graduating. for this dream, you studied so hard for the last two years, but everything ended too soon." in fremont, philippe djegal, kron four news.

bus commuters beware. your trip getting around tomorrow could face major delays. we explain why transit bosses are bracing for a potential muni sick out tomorrow. an m-t-a official says most transit operators will be on the job tomorrow. however. employees are calling out sick. he says early attendance reports indicate that service could be impacted. a similar sick out happened last friday. which caused delays on the j and n lines. m-t-a authorities will be working through the night and morning to ensure muni service is running smoothly. still ahead. a terrifying accident caught on camera. more video of this air show stunt gone wrong ahead. plus. the story of a man dedicated to his mother. how he comes to her rescue. by helping a total stranger.

my dad worked as a short order cook.

right here. my parents were immigrants. and they taught me that with hard work, anything is possible. i earned a scholarship to mit. and worked across party lines to get things done. i'm alex padilla. i'll protect voting rights for everyone. and make it easier to start a business. so we create jobs and opportunity for all californians. what should we order? (announcer) alex padilla. secretary of state.

the greatest gift a mother can give is life itself. kron four's dan rubin met a man who gave his mother's life a second chance. by donating a kidney to someone he'll never know. coming to san francisco's kidney walk would not have been possible for barbara berkowitz. for the one out of every nine americans that will suffer from kidney disease. dialysis is the most common treatment. but dialysis is not a cure. a better treatment option is a

kidney transplant. but finding a donor takes about eight years. unfortunately neither of them was a match. so, allison assembled a team to make a different kind of donation. every cent has gone directly to the national kidney foundation. meanwhile, sandy joined a team from ucsf that matches living donors with someone else's loved one in need. sandy and barbara were cross- matched with four other people. who they are is still unknown. all six people underwent sucessful surgeries.

among the one thousand people at the san francisco kidney walk. there are many success stories. but there are thousands more still waiting to be written. reporting in san francisco, dan rubin, kron four news. american idol finalist scott macintyre made an appearance at the kidney walk. the singer was diagnosed with stage 4 kidney failure when he was a teenager. he describes what it was like to battle the disease from a young age. macintyre performed for over one thousand kidney disease survivors and their loved ones this afternoon. the event was held by the national kidney foundation. which raises money for kidney disease research. 7 people were killed in a private plane crash in massachusetts. it happened last night after taking off from hanscom field airport, outside boston.

the plane was headed to atlantic city. among the victims was lewis katz, a media mogul popular in philadelphia. katz was a former owner of the n-h-l's new jersey devils and n-b-a's new jersey nets. he was also the co-owner of the philadelphia inquirer and philadelphia daily news. a pilot was killed sunday when his plane crashed at the stevens point air show in wisconsin. the accident, which was caught on camera, stunned those at the air show. watch this footage. organizers canceled the rest of the show after the fatal accident and sent the crowds home. the cause of the crash is under investigation. a u.s. soldier held captive in afghanistan is now in germany receiving medical treatment. sergeant bowe bergdahl was held for nearly 5 years by insurgents in afghanistan. he is now at an american military hospital in berlin. sergeant bergdahl will then continue on to the u.s. in the meantime, medical staff in germany are evaluating his condition and assisting in his recovery process.

new details emerging of a revised bill that will address problems within the veterans' health care system. the measure will be introduced this week. the bill would allow veterans to seek care outside the v-a if they face long delays. former v-a secretary eric shinseki resigned last week due to widespread problems with the health care system. an audit conducted on the v-a says schedulers were pressured to use bad practices to make waiting times for medical appointments look more favorable. emmy-winning actress ann b. davis has died in a texas hospital. she was best known for her role as the loveable housekeeper, alice, on "the brady bunch". a longtime friend says she fell yesterday at her san antonio home and never recovered. davis was television's sweethart in the 1960's. she led a quiet and religious life up to her death. she never married. ann b. davis was 88 years old. ahead of tuesday's primary election community leaders and environmental advocates along the penninsula are pushing for a measure that would create

greater public access to open space. as kron 4's john fenoglio reports, there is already strong public support for the measure.

walmart has found a way to cash in on the feud between amazon and the book publisher hachette. amazon and hachette, the publisher of popular authors including j-k rowling, are fighting over digital book prices. amazon has reportedly blocked pre-orders for some upcoming releases, including rowling's "the silkworm." so, walmart jumped into action. the world's largest retailer

began offering nearly 400 hachette titles for 40-percent off with delivery dates as soon as this week.

giants say bye bye to st. louis. and a's face an old oakland nemesis. bay area baseball right after this. safeway understands

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the giants have the best record in the national league and for good reason. tim hudson is 6-2 after scattering three hits over seven innings of san francisco's 8-0 romp at st. louis.

joaquin arias hit a two-run single in the first and finished 3-for-4 with three rbis. after an off day on monday they hit the road for a 3-game set with the cincinnati reds. jed lowrie homered and drove in two runs against oakland nemesis jered weaver. and the a's complete a three- game sweep of the los angeles angels with a 6-3 win. oakland leads the al west by 4½ games over la. that's it for the kron 4 news at 11. stay connected with kron 4 and get latest news at kron 4 dot com. or download one of our mobile apps. we'll see you tomorrow morning!

heat shields are compromised. we have multiple failures. are those thrusters burning? that's a negative. what's that alarm? fuel cell two is down. i'm going to have to guide her in manually. this is very exciting.

but i'm at my stop. come again? i'm watching this on the train. it's so hard to leave. good luck with everything. with the u-verse tv app, the u-verse revolves around you the u-verse revolves around you

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