salle drive. sky 7 hd is over head you can see one house looks as though it's damaged. now there are no reports of injuries >> abc7 news is under investigation for one of the biggest explosions ever. vic? >> it's good police work putting all pieces together and of course, as luck would have it, there is security video giving investigators a lead. we'll show you that video but let's begin the story from the recent arrest of two men. >> mark and sean arrested march 6. police say they were involved in making and selling explosives large quantities found in one home in pacifica. >> we believed it could have levelled a house and taken out neighbor's house s. >> police told abc7 news they

seized the drums containing powder and found more powder stuffed into 40 smaller containers and 700 bombs in varying sizes. >> we had commercial grade fire works there is over 1300 pounds as well. >> police confiscated weapons they began into the bomb-making operation four months ago. it happened when this employee was arrested and charged with igniting an explosive device on broadway. he does it while people are still walking by the bomb does not go off for several minutes perhaps because

of an ignition delay with a bomb's wic. people are still walking close. then, suddenly, the device explodes. it's amazing no one was hurt. >> there are pieces from the building from possibly the pipe that gets sent out like scrap metal it could really hurt you. >> the video enables police to identify shultz. that led to gunther. then, mark ormando. there is so many explosives materials that police had to keep them in three separate storage facilities all three suspects pleaded not guilty to charges >> thank you. >> it turns out a squirrel caused a big power outage this morning. 1200 customers without power

the utility says the squirrel came into contact with equipment. one customer in that area was cal train's dispatching center. that led to trains to stop to cause delays power restored to all customers after a couple hours. >> there is a big fight to save a tree. arborists and historians banning together to save a redwood little noticed until announced it would be chopped down to make way for a transit system. we're live to explain the story. wayne? >> if you look, there it is, the tree. no one paid attention to it. they found out it's special. the question, is it special enough? it's a redwood tree that got a

hearing >> you're going to have to take out trees. that is part of the reality. >> now, it's a fight has been ever since discovering this isn't just any tree but two subspecies co-existing as one. >> there is only ten of them that exists. >> also, most controversial. now that the smart train board heard comments today. >> this is a community issue. it's important to them. it's important to us. >> well, most people here, anyway. >> it seems to be the this time around.>wu has begun

to move the tree to a local park. >> if have a choice we prefer not to cut it. it has to be practical. it has to make sense. >> i say it should be tried. all you can do is try. you can't just give up on the poor old thing. it's been there 60 plus years. >> yes. when it comes to a rare albino redwood, the tree world is watching. wayne freedman abc7 news. >> looks as though voters have a say on what gets built on the water front celebrating a decision to keep a measure on the june ballot. real estate developers and giants had sued to invalidate prop b requiring voter approval for any project exceeding current height limits.

>> they should not be afraid. then voters will hear why. san francisco voters want our water front to change. >> proponents say only the port commission has a legal say if approved it threatened proposed warrior as rena and giants plan to build a tower near the ballpark. >> a record find to talk about. toyota agreeing to pay $1.2 combrinl to settle an investigation into run away car that's suddenly accelerated without warning. five people dieed and 0 million cars recalled. abc news exposed this problem in 2009. >> and annaists say the deal with toyota could serve as a model on how the justice department deals with its

investigation with general motors gm under investigation of how it fail on ignition switches a decade after first noticing the problem the problem could lead to cars stalling and here on what to do if your car stalls is michael finney. >> this is important information. not only because of the recalls but because this can happen to anyone. and any car. let's say you're driving down the road. and the car turns off unexpectedly. now what? here is jake fisher. >> it's going to be hard to steer the car. you won't be able to restart it. >> several different cars could experience this situation because of a defective ignition

switch. this could happen to anyone. you might run out of gas having too much weight can make the switch wear out prematurely. if the engine is not running power steering isn't working meaning it could be very hard to steer and hard to keep your car in the hane. >> here is richter of auto testing jake fisher. >> if this doesn't work apply breaks and coast on the side of the road. >> for more information go to our web site abc7 news.com. >> still ahead reverend jesse jackson is in town. >> mystery in the skies neighbors can't stop talking

about what is flying over their homes in sacramento. >> and the president's mistake. what he admits to after being corrected by a guest at the white house. >> looking at a watering mess a truck crashed into a fire hydrant nochlt real taj. just some major clean up. >> abc7 news at 5:00 continues in 60 seconds.

we have a sad update on our breaking news the deputy shot in mendocino county has died the sheriff confirmed it just minutes ago saying the suspect involved in a kidnapping in oregon and the deputy's car approached, the suspect opened fire and riddled the car with bullets killing the deputy.

following a chase and a search the suspect ended up shooting himself. there there is only one suspect. >> we'll have more coming up at 6:00. now to dramatic video. a s.w.a.t. team shot and killed a man in pacifica late last night. >> family members called police to say their son errol chang had an axe ask was out of control. officers evacuated the neighborhood after six hours police used a flash-bang grenade to try to get him out of the house. it did not work police say chang stabbed one officer and officers opened fire, killing chang. >> bay area air quality officials say it will spend $five brinl to help local truck owners with mandates. in 2008 the california air

resources board approved truck and bus regulations aimed at reducing emissions. setting a deadline to either install a filter, engine or replace the truck. >> in the first official meeting as fed chair, janet yellen says she will keep interest rates at lows and says unemployment isn't where it should be and housing too tight in the country, with too many people living at homes that are underwater. >> help is on the way for anyone caught in the middle of the mortgage crisis hundreds of bank representatives and counselors will be on hand for the american dream event in oakland. organizers say a surprising number of homeowners are still in trouble despite improving economy. >> 6,000 plus homes are in

stages of foreclosure. this is alarming. that number is alarming. >> the service is free. the event runs tomorrow through monday at oakland marriott right downtown. for details on hours and how to get there go to our web site a abc7 news.com. >> republican senator rand paul taking on issue of privacy and the government today at uc berkeley. >> if government collects information from everyone of the phone calls. that is what they're maintaining. remember the warrant snoweden revealed? every phone call from verizon was on the list. government stores your e mail. so it can access without a warrant. >> the senator says every american can relate to the issue of privacy.

he is considered a conservative front runner for the next election. >> the reverend jesse jackson taking on diversity today, leading a delegation to the hewlett-packard shareholder's meeting today and says there is a huge lack of diversity on corporate boards. >> locking out women and people of color. >> protestors say the biometric cards used at check points help segregate palestinians. >> president obama hosted a

screening about cesar chavez to organize farm workers in california. the president says chavez is one of his harry yoes the president could not stay for the screening but got laughs from members of the media when he talked about his plans to it. >> i've been promised that i'm, or producer someone is going to give me the cd. or whatever the dvd. the point is i'm going to watch it this weekend. >> that is what he said >> cesar chavez opens nationwide march 28th. >> very cute. >> people living in sacramento are curious and a little frustrated with a plane flying in the area that is flying day and night for weeks.

>> night and day flying several thousand feet above his neighborhood >> this just loops and loops loops. >> just goes in circles. almost all day long. >> pat loft has been watching it, too. >> i find it annoying and curious about what is going on it's been going on for more than 3 or 4 weeks >> this animated map from a tracking service shows the movements the call sign is blocked. this map shows the precision. >> it's still circling in this pattern. >> dozens have weighed in.

some speculating it's drug enforcement administration seeking heat signatures of grow houses the plane appearing to be flying in an altitude that would not require contact with air traffic control. and >> that is really >> i'm curious what they're doing. and why. >> in sacramento george warren abc7 news. >> students studying the gold rush got a lesson about water conservation. these fifth graders in san francisco were given the task to wash clothes and dishes and keep themselves clean with a gallon of

they take it seriously to be conservationists about water. >> idea to take the message home of just letting a faucet run wastes about three gallons per minute. that is a lot. >> yes. let's head outside with a lesson on the water. >> sandhya patel is on the sky deck. >> yes the reason why i'm on sky deck is it's spectacular out let me show you clouds here, obvious from our live doppler 7 hd. we don't have rain right now. south beach camera showing you beautiful skies there.

most of the bay area into the 70s today. san francisco up to 72, 75 santa rosa. 76 san jose. it's a gorgeous view. concord 73. livermore, 75. los gatos close to 80 degrees at 79 the high so far. from our exploratorium camera, we're enjoying the sun. great day, high clouds with us overnight tonight. spring arriving tomorrow morning. and we'll hang on to dry, mild patterns towards the weekend. high pressure here will continue to see high clouds as we head into the first day of spring.

filtered sunshine, temperatures remaining mild. a storm system approaches chance of rain wednesday. so just stay tuned tomorrow morning comfortable, low 40s to low 50s then, into afternoon, it's still going to be warm in the south bay. beautiful day. low to mid-70s from menlo park. 68 on the coast. and mild day on the east bay. 71 newark. inland spots low to mid-70s a look at the accu-weather

forecast cooling down, friday, low 60s to low 70s we'll hold you there for the weekend you'll notice a return of low clouds, then, we'll see rain by next week. beautiful weather. down side, allergy season is here. >> yes. it's a trade off. >> it is. who doesn't feel groggy when you don't get enough sleep, right? why a lack of shut eye may be shutting down the brain >> emergency kit put together by a family that has the walking dead taking notice we'll explain at 6:00. we'll be

a man is in custody accused

of a drunk driving rampage through the streets of mountain view at 7:30 this morning. sky 7 hd captured the aftermath. police say the driver took off, kept going, driving his suv across the median and heading the wrong way before he finally crashed. >> well you may want to get more sleep after hearing this. a study finds long term sleep deprivation with fry 25% of brain cells even if you catch on sleep days later. researchers put lab fies -- mice on the schedule.

>> the country of nepal is planning on putting ladders on the side of mount everest and it may be bolted to the 40 foot high step that lies 300 feet below summit. >> china's large wrest online travel agency is laufrnling a insurance package for trips ruined by pollution. scientists described the pollution as a nuclear winter. >> most social networks designed to connect people, one service is helping you avoid them. cloak uses data from other locations users can choose an alert when certain people are believed to be nearby so you can avoid them. it's the latest trend of antisocial apps. >> tesla commercial shot here in

the bay area has gotten attention of founder elan musk. the individual yes features a little boy getting into his dad's tesla. musk saying he loves it. 150,000 people have seen it so far. very clever. >> yes. very talented people interest there >> still 'd go going one better. a walrus kept pace with jim harbaugh. >> coming up with a sequel might be better than the original. back in

so i was basically uninsurable. now that i've got coverage, my doctor is a phone call or an e-mail away. i'm in. [ female announcer ] everyone deserves health insurance. are you in?

find free, confidential, local help at coveredca.com. coming up at 6:00 new information on that fatal shooting of a she have's deputy in fort bragg. also, stepping up to help some san francisco cops facing corruption charges and a new world in video gaming. it's coming up on abc7 news at 6:00. >> a walrus here in the bay area getting national attention at it again? take a look. >> yes. this is a trim 1750 pounds and has pretty good form during her push ups. >> wow. >> maybe she'll come out with a workout video. >> she's in good shape.

thanks for joining us i'm cheryl againings >> see you again at 6:00. welcome to "world news." tonight, closing in. a dramatic change. the search has narrowed for the missing plane. and tonight, we are there, as anguished families erupt, demanding answers. runaway cars. news on the massive recall of 10 million toyotas. >> our accelerator's stuck. we're in trouble. there's no brakes. >> tonight, the company admits misleading customers and pays one of the largest fines in history. at risk. why are the women in your family twice as likely as the men to develop alzheimer's? and big break. the new twist in the seven-year search for little madeleine mccann.