sheriff has stepped up surveillance. today's fight took place in unit 4-a, which is a maximum security wing, and where the new cameras were just installed. >> lisa, thank you very much. the jail is also where guards have been accused of fatally beating an inmate. >> today is the fourth day of a preliminary hearing of those guards accused of the killing. >> katie utis is live with that story. >> reporter: i just stepped out of the courtroom. the judge is still making up his mind. they are up on the sixth floor of the hall of justice right now. today, the defense pointed out michael tyree threatened to commit suicide, saying he may have killed himself and it wasn't the guard. one attorney tried to show his injuries could have been self-inflicted. but the medical examiner says the force was consistent with a

car crash or falling off a roof. the doctor who performed the autopsy on michael tyree described injuries so brutal -- >> the blow to the body was of such force it caused a bruise on the outside of the body and then lacerated the liver in a y-shape, two inches deep. >> reporter: his death was classified as a homicide after he died of internal bleeding. now, three guards, raphael rodriguez, matthew farris and jared lubrig face murder charges. >> under the protocol, if there is a use of force, there's supposed to fill out a form saying they used force, and there was no record of any use of force against michael tyree

or against juan villa. >> reporter: inmate witnesses had obscured views of the cell, and nobody saw which guard, if any, struck the inmates. she says it may not matter. >> if you and i act in concert, i'm as responsible as you are. if i say oh, hey, let's rob the 7 7/lempb -- 7/eleven, if you rob it and i drive the car, i'm as responsible as you are. >> reporter: i'm going to step upstairs and see what the judge's ruling ultimate was in the case. and if he's going to put these guards on trial or not. stay with "abc7 news." we're live in san jose. >> thank you, katie. more zika virus cases are being confirmed in the bay area. san francisco health officials just told us a person tested

positive for the virus last month. the person was infected during a trip to central america. cases have also been confirmed in napa and alameda counties. health officials emphasize the disease is not circulating in the bay area. the zika virus has been linked to birth defects. caught on camera. that's how police say they were able to catch a 20-year-old nanny and charge her with child abuse. investigators say they're working to identify more potential victims after the stunning video. melanie woodrow is live where neighbors say the nanny lives. >> reporter: we've met quite a few parents of young children in this neighborhood here this afternoon and they all tell me they are shocked and saddened by this charge. law enforcement says there is nothing in gonzalez's past record that would have come up on a background check. neighbors describe mariah gonzalez has happy and bubbly.

>> i couldn't believe she would do something like that. >> reporter: she's charged with child abuse. the police say gonzalez advertised her services on care.com. according to charging documents, on february 18th, gonzalez was caring for a 13-month-old boy. when the boy's mom came home, she discovered abuse when she watched nanny cam video. gonzalez was attempting to calm the video. when she placed his hands close to his face, the baby began to squirm and kick and then went limp. when gonzalez moved her hand away, the baby cried again. she then put him in the crib and left the room. >> tried to smother him? that's scary. >> reporter: the baby's mother discovered the video while gonzalez was still in the home and asked her to leave. >> she obviously didn't know she was on camera. >> reporter: that's what police say. when an officer interviewed gonzalez the next day, her statement didn't match what was on the video.

when the officer told her about the nanny cam, gonzalez seemed surprised. even after the officer described what was on the video, gonzalez denied hurting the baby. livermore pd says there could be more victims. in a statement, a care.com spokesperson says, we have contacted local law enforcement to provide whatever assistance we can in this matter. gonzalez has been banned from care.com. she's expected to be in court tomorrow morning. melanie woodrow, "abc7 news." some of the biggest names in the tech sector are rallying around apple in the company's encryption fight with the u.s. government. more than a dozen companies, many head quartered in the bay area, filed friend of the court briefs today in support of apple. the titans of tech emphasize the values of privacy and transparency. they say if apple complied with the fbi's order to build a back doorway to build iphones, it would set a dangerous precedent

for all tech companies. the fbi is asking apple to unlock a phone from one of the san bernardino shooters. >> information in the technology industry has long had a view the government shouldn't be telling it what to do. and they have been successful at resisting all attempts. >> families of some of the people killed in the attack also filed briefs. they implored apple for help. the latest storms are in pause mode right now after some light rain today. this is a live look outside at pier 15. you can see gray skies and clouds that might bring us some more showers tonight. but this is just setting the stage for the big storm hit thing weekend. sandhya? >> what is left of today's system is right now on live doppler 7 hd.

let me show you where we are. still getting some light showers, and that's around the santa cruz area. watching the showers move towards morgan hill, felton. and as you take a look at the timeline of the next batch of showers, tomorrow morning during the commute at 4:00, 5:00, pretty widespread. and we'll continue the shower activity through most of friday. one is light on the storm impact scale. five is severe. the one coming in saturday is a strong system, a three. one to two inches of rain expected for most areas with the hills getting up to three to six inches. the wind gusts, 45 to 55 miles per hour could topple trees and power lines and here is a look at the intensity of the rain. it goes up saturday afternoon and evening. and we even have the possibility of thunderstorms as we head into sunday. and another system arrives. details, hour by hour timeline for your weekend plans coming

up. >> sandhya, thank you very much. it is amazing no one was killed when you see this. that's what first responders are saying, after a speeding car flew off a freeway and into a building. laura anthony has more. laura, i don't know when i've seen something like that. >> reporter: that's right, dan. this building behind me took the brunt of this accident. it's now been red tagged. the two people inside got a big assist from paramedics who just happened to be parked a few feet away. >> it's extremely lucky. >> reporter: fire marshal robert marshal has seen a lot of accident scenes but few like this one, where a car flew so far, hit a building and the occupants survived. >> if they had encountered anything that was solid, that would have been a different outcome.

>> reporter: it took firefighters 40 minutes to free the two badly injured people inside. >> saw the car inside the building. unbelievable, the way it made it from the treatway down to the bushes, the fence, and through the building. >> reporter: there just happened to be an amr ambulance sitting in the parking lot waiting for a call. >> to have ambulance here, get our cruise here so that wecht get the extraction started was huge. >> thank god it happened when it did and no one was in there. >> reporter: lafayette police had been chasing the vehicle moments earlier, but called off that pursuit seconds before the crash. laura anthony, "abc7 news."

are you tired of feeling like a sardine when you take b.a.r.t.? >> they have a plan they say will reduce congestion but there is a catch. >> plus, the ambitious building boom planned for oakland. it's almost like adding an entire new town. >> and scammers trying to scare you into handing over your tax

this is "abc7 news." if you take b.a.r.t., b.a.r.t. is hearing you loud and clear. crowding is unbearable. this spring, b.a.r.t. will roll out a new program called b.a.r.t. perks, intended to alleviate some of the overcrowding so many are complaining about. how does that work exactly? lyanne melendez is live to explain.

so often i hear from people all the time, can't get a seat. >> reporter: that's right. if you're one of those. b.a.r.t. wants you to know that if you have one of these, a clipper card, and you're willing to be selectable, you could be making this, money. it's been said many times before. >> it's too crowded, and they don't have enough cars. >> reporter: b.a.r.t. ridership has gone up significantly with 430,000 trips on an average weekday. an increase of 100,000 trips in the past five years. >> so we're trying to do everything we can this year to ease crowding. >> reporter: while they wait for the 775 new train cars to arrive in about a year, b.a.r.t. wants to do something now. commuters traveling outside the busiest hours from 7:00 to 8:30 in the morning would be awarded points. they're looking to sign up more than 1200 people using a clipper card or pay pal account.

>> you can redeem these points for small cash prizes or play online games we have. >> reporter: the money to pay for the program comes from a federal grant. b.a.r.t. says reducing the amount of commuters by more than 1200 people during the peak times would make a huge difference in the morning commute. >> people are coming in on the old model, which is required to be here at 8:30. we don't need that. we can work from home. >> spread out the rush. >> that would be ideal. >> reporter: in san francisco, lyanne melendez, "abc7 news." the mayor of oakland released a plan to address the city's shortage of affordable homes. it calls for building 17,000 new homes over the next eight years. and shielding low income renters in an additional 17,000 homes from rent increases.

oakland is now the fourth most expensive rental market in the country with an average rent for one bedroom home of $2190 a month. the goal is to keep the city's appeal as a place where people want to move while making sure long-term residents don't get priced out. >> the plan will help ensure we keep the diversity of oakland and we also build. we can't build a wall around oakland. >> the new homes would include a mix for a lower, middle and high income residents, paid for with a bond measure on the november ballot. a judge in a federal special education case will not release the records of thousands of california schoolchildren as planned. the judge backed away after parents who had been notified inundated her office with objections to the idea. the records were requested as part of a federal lawsuit filed by two groups representing parents of children with disabilities. you have less than two months until the tax day dead

lien, which is april 18 this year. but be aware of the schemes out there. >> michael finney is here with how you can spot those scams. >> this is the biggest scam, huge. scammers are using clever ways to scare you into handing over your hard earned cash. hundreds of thousands of people have been targeted in the past few years. consumer reports tells you how to spot a scam so you don't become a visit. alex's nightmare started with a phone call allegedly from an irs official. he was told his tax refund was a mistake and he had to return it that day, or else. >> they said they're going to cut off my rights. >> reporter: he wired $700 to a scam artist in peru before he realized he had been had. >> the u.s. treasury department says this scam has been perpetrated in just about every state and estimates thousands have been defrauded of more than $26 million. >> reporter: it can happen to

anyone. this message was left on the home phone of a consumer reports employee. >> i'm calling regarding -- [ inaudible ] >> reporter: when she called back, she was told she could avoid arrest by wiring more than $6,000 to clear her record. >> you need to go to the bank first and get the money in cash. if you don't, you will be arrested. >> the irs never calls out of the blue. if you have a tax problem, you will be contacted. >> reporter: other things the irs will never do is demand immediate payment, threaten arrest, require specific payment method, or request confidential information on the phone. alex gutierrez says getting that call was very scary but knows now how to spot a scam. if you suspect a call you get is

a tax scam, report it to the treasury inspector general for tax administration. there's the phone number right there. or file a complain online. i'll have the link and that number you can call on our website at abc7news.com. >> just call. >> when someone contacts you by computer, hang up, call back. and don't call the number they tell you. >> good tip. state officials are closely monitoring the return of an endangering animal it hasn't seen the '20s. the gray wolves used to roam freely, but vanished nearly a century ago, until last year when a pack was spotted. wildlife workers began working on a management plan for this species. not everyone is happy to see the gray wolf back in the state. >> some people feel differently about the -- that wolves are

back. they feel -- some of them are cattle ranchers and they have a different take than maybe an environmentalist. >> wolves prey on cattle and deer, a scarce food supply and lack of mates are reasons why they typically stray from packs. there's a lot more rain to come. >> meteorologist sandhya patel is outside with the forecast. >> we're just getting you started with that little bit of rain we had today to dampen the roadways. it is dry out here, clouds are out and it looks threatening in some areas. here's where we are seeing some showers. a big storm coming on saturday. and a moderate storm for sunday. tracking what's left of our system, which is showers around santa cruz, felton, and as you look at the rain totals, san jose, only a trace of rain. much more coming. that's why a flash flood watch has been posted for the burn areas of lake county.

saturday at 4:00 p.m. through sunday at 4:00 p.m. flash flooding and debris flow is possible. if you live in that area, you'll want to stay tuned. temperatures right now in the 50s, the 60s, definitely feels cooler than it has in the last couplef days. here's a live look from our emeryville camera. scattered showers tomorrow ahead of the stronger storms for the weekend. rainy and windy with possible thunder this weekend. so take a look. tomorrow morning's commute, you will have slippery roadways. so plan accordingly. light to moderate rain, 6:00, still looking at showers going into the 7:00 and 8:00 a.m. hour. if you're grabbing lunch tomorrow afternoon, you will need to have your umbrella handy. those showers will continue into the afternoon and evening hours, but not as widespread as the morning hours. the storm impact scale comes back into play. we have a strong storm coming for saturday. it's a three. three to six inches of rain expected in the hills.

with those gusts, 45 to 55 miles an hour, saturday afternoon, evening might be a good time to be inside. here's your timeline. the morning is just a few showers. we head into the afternoon, stormy conditions develop, the wind kicks up out of the south first. and then the intensity of the rain goes up. at 5:00 p.m., it's stormy across the bay area. saturday night, 6:00 p.m., it's going to take you longer where you need to go. trees and power lines could go down. there may be some minor flooding of the roadway, so keep that in mind between saturday night and sunday morning. sunday, that next system comes in and that is a two on our storm impact scale. so here's a look at the wind gust. they will be picking up saturday morning. gale watches for the outer waters. looking at wind gusts over 50 miles per hour saturday at 5:00 p.m. and the winds start to drop off. still gusting, 40, 50 miles an hour, continuing. and then late saturday night is when it will remain on the breezy side. in terms of our rainfall totals, by saturday night, we are talking about three to six

inches in the south bay mountains. two to four inches in the north bay. one to two inches for most lower elevations. gusty winds, two to three feet of snow at the highest peaks. be prepared for winter driving conditions, 8 to 16 inches expected above 5,000 feet. and the resorts loving this, get ready for skiing or boarding over the weekend. tomorrow morning, temperatures in the 50s. you'll see the scattered showers around. it's wiper weather for parts of the bay area in the afternoon. highs in the 60s. accuweather seven-day forecast, scattered showers for your friday. a three on our storm impact scale. strong storm for saturday. moderate storm for sunday. it's a two, looking at a chance of thunder. showers monday morning. we will go for a dry forecast tuesday night into wednesday morning. we need the rain.

it is going to be a stormy weekend. kristen and dan? >> we need it, we'll get it. sandhya, thank you very much. monkey think, monkey do. the power of the mind, just ahead. then at 5:30 on world news with david muir. >> breaking news tonight. the republican revolt. the big name now out to take down donald trump. trump firing back. a young police officer charged with murder, accused of shooting an unarmed man. new developments tonight after "abc7 news." >> david, thank you very much. and call it an antiques road show for toys. new at 6:00, the event underway where you can buy or sell vintage collectibles or find out i was walking home. just picked us up two breakfast croissants for four bucks, when this bear attacked.

with one swipe, it devoured one of the croissants. then jack showed up and took care of the beast, so i could escape. and that's what happened to your breakfast croissant. and yours? it survived. share it with yourself. freshly cracked egg with ham and bacon, or sausage, get two breakfast croissants for four bucks.

two bills impacting tobacco use in california took a major step forward today. the state assembly voted 46-26 to raise the age limit to buy products from 18 to 21.

it addresses buying, not possessing tobacco. active duty military could still buy tobacco at 18. soccer star brandy chastain will donate her brain after she dies for research. she's just the seventh woman to offer her brain to researchers. she says she wants scientists to better understand chronic traumatic brain disease linked to concussions. she suffered two concussions in college and often headed the ball in her 40 years of playing the game. there's new hope for people who are paralyzed. a study shows monkeys stealing wheelchairs using only their minds. researchers say the brain implant has held out inside the monkeys for seven years. they compare it to a pacemaker.

if the brain implant works for humans, it could some day allow somebody who is completely paralyzed to operate a wheelchair on their own. >> isn't that incredible? the intersection of two continents in one location. coming up, the world as it was, nearly four

i'm ama daetz in the "abc7 news" room. coming up new at 6:00, key testimony in the police shooting case. the man who called 911 testifies about what he saw and heard that night. also, releasing water during a drought. it's a delicate balancing act between conservation and safety. and the northern california city where wild turkeys have become

such a problem, residents may soon be allowed to shoot them. all coming up on "abc7 news" at 6:00. >> thank you, ama. it's described as one of the rarest and most important maps in the world. and starting tomorrow, you can see it in person in san francisco. >> yeah, the map was created in 1602. it was the result of a european visit to china. it puts the pacific ocean and china in the center. >> it's a collaboration of western and chinese map making techniques. there are only six complete copies in the world. >> this is where we begin to see the modern conception of our planet beginning to evolve. seeing these maps really helps us see the world as people saw it 400, 500 years ago. >> "abc7 news" got a preview of the new exhibit at the asian art museum in san francisco. it officially opens tomorrow. >> all the chinese characters, amazing detail. >> it's beautiful. >> "world new tonight" is up next. i'm kristen sze. >> i'm dan ashley.

for all of us here, we hope to see you again in half an hour. >> bye-bye. tonight, donald trump under attack. the republican revolt under way. mitt romney taking aim with a blistering new attack on trump. >> donald trump is a phony. a fraud. >> trump tonight, firing back. >> mitt, drop to your knees. he could have dropped to his knees. >> and donald trump about to face someone else. fox host megyn kelly, after a very public feud. breaking news tonight. a young police officer charged with murder. accused of shooting an unarmed black man. authorities say he thought the suspect was holding a weapon. new developments. the urgent manhunt right now, after nearly a dozen men make off with ar-15-style rifles. the arrests. and where they're searching now. the billionaire ceo and the deadly crash. less than 24 hours after he was indicted. new tonight here, the 911 calls. you'll hear them. was it an accide