now at noon, a heartbreaking plea from a mother of two teens both killed in oakland. what police are now saying about the cases and what they need from the public. king tides caused some flooding in parts of the bay area. the warning from the coast guard and how long the king tides are expected to last. plus -- president obama set to give his state of the union address in 60 hours. the -- in six hours. the criticism already coming from the republicans about the president's proposals. good afternoon. i'm tori campbell oakland

police are now asking for help in solving three cold case homicides involving teenagers that happened a year ago. ktvu's allie rasmus was there as a mother of two of the boys made an emotional plea for help. good afternoon, allie. >> reporter: two of the killings happened at this intersection, 100th and longfellow in oakland, almost a year ago. the two were sitting in a parked car. they were both 19 years old. someone came up to them or some people came up to them, opened fire, shooting and killing them. two weeks prior to that, lee whethersbee was shot and killed as he was walking home from the boys and girls club a few weeks ago. the homicide detective says they have a good idea who may be behind the killings. as he put it, knowing and proving are two different things. today, investigators and families of the victims spoke here. they hope to generate momentum

and knew leads. >> the mother made an emotional plea for anything with information to come forward. >> please, i'm begging you. this is lee right here. they did this to my 13-year-old baby. >> it doesn't have to be the smoking gun but a piece of the puzzle to help get these people responsible for these crimes. >> reporter: now, she talked about the reward being offered for information leading to arrests. more than $30,000. homicide investigators wouldn't say whether they think these three homicides are connected. but certainly the families of the victims believe they are. they say it's no coincidence that two brothers and their friends would be killed two weeks apart. investigators say they believe they have a shot at cracking this case but they need more information from the public. >> that's really important to us. we do have information but we want to make sure this information doesn't go by the

wayside. we need to connect the dots and continue talking to people. >> reporter: there is a reward foe information that leads to an arrest in any of these three killings. $30,000 from crimestoppers. the mother of lee and broussard has privately fund-raised about $15,000 in reward money. oerk police want to re-- oakland police want to remind anyone who have information that they come forward by text by phone and they can be anonymous when they leave that information. live in oecket oakland, -- oakland, back to you. >> thank you. japan is facing a threat from isis. hand over $200 million or else two hostages will neat a gruesome fate -- will meet a gruesome fate. japan's prime minister is demanding the hostages be released immediately. here's more. >> reporter: isis retaliating against japan today. a new militant video posted online shows two japanese

hostages wearing orange jump suits just like other captives beheaded by the group. a fighter with what sounds like a british accent demanding $200 million for their release. japanese prime minister calling the situation unforgivable during his six-day visit to the middle east. >> translator: i strongly demand the islamic state group does not hurt the two citizens and release them. >> reporter: the $200 million request is significant. that's what was pledged for the u.s.-led coalition fighting isis in iraq and i syria. taking people people hostage a pig source of income for the group. >> globally it's a 1.5 billion industry annually and isis, they've made at least $140, $150 million since 2008 in ransoms. >> reporter: isis giving japan 72 hours to pay up. the country says the threat

will not change its stance against the militants. >> translator: japan will not yield to terrorism. we will continue to contribute to the international communities' fight against terrorism. >> reporter: one of the hostages is a free lans journalist. the other is described as the chief expectative of a private military -- chief executive of a private military company. we've been telling you about the king tides that can cause flooding in low-lie areas. sal castanedo is live with more. i see some water behind you. >> reporter: that's right. king tides are here. this spot always seems to get the flooding. they will be here for the next few days, today and tomorrow are the worst days but the national weather service is warning a flooding in low-lying coastal areas. you can see the water is coming onto the road here in unincorporated marin county. we're near the bus stop at the

highway 1 stinson exit. golden gate transit supervisors are here we're making sure the buses can make their way through. those who use the parking lot say they are used to it and are making provisions. >> well in the winter we won't park here. this is salt wall street. it's bad -- this is saltwater. a lot of people don't know that. they think it's a puddle. >> reporter: cars are driving through the water. the national weather service says the king tides will be here for about a week. it says the king tides are caused by the alignment of the sun, the moon and the earth. some cars in the parking lot were trapped in and this woman says she came to get her daughter's car and it was gone. >> yesterday, she came, tried to get the car out.

no way she could get it out. she got a ride to san francisco. she stayed in san francisco last night and this morning i'm coming to get her car, check the car. the car is gone. no signs of -- i don't know whether it not towed, stolen. >> reporter: the weather service says this isn't the only area affected. some beaches are subject to dangerous riptides. authorities say it's best to stay out of the water until the king tides subside. one of the things we mentioned is the lady who had her family member's car towed. it was in the parking lot. apparently it's pretty common for caltrans to come through and get those cars out of the way. fortunately, that woman told me she's gonna have to pay more than $300 to get that car back and she said she's gonna fight caltrans on it. tori, back to you in the studio. >> wow. all right. let's go to steve with more on the king tide situation. steve? >> thank you. yes, gee have a gravitational

pull here. we'll get another round in february. might be a bigger deal in february, around the 18th. we also have a supermoon here. now, the king tide is a solar gravity, combined with lunar gravity. that's kind of the key. but because of the supermoon, it means the moon so closer to the earth. january's supermoon. the february one will be stronger. there will be a high tide coming in about 12:30 in the morning. that's only going to be 5.4 feet. we had the high tide, 6.9 at 10:-- 10:44. tomorrow at 11:30 a.m., 6.8 feet. that will be the next you round. after wednesday, they will start to subside. we'll eight another round in february. we are mae not done yet -- we are not done yet. >> thank you, steve. happening today, president obama delivers his state of the union address and republicans

are already criticizing some of the proposals he's expected to pitch including tax breaks for some and tax increases for others. kevin core crunches the numbers. >> reporter: president obama munkerring down at the -- hunkering down at the white house. much of what he's expected to talk about has already been laid to the public in recent weeks. >> our economy is demonstrating real resilience. the president thinks had by focus ing on the middle class is the best way to grow the economy. >> reporter: money the president says will come through tax hikes, namely, he wants to raise the capital gains tax from around 23% to 28% for those making $500,000 a year or more. while also eliminating tax

breaks on inheritances. he wants to impose a fee on large financial firms. all idea the new republican- controlled congress will likely reject. >> the likelihood nothing will change the trajectory of the economy. >> reporter: it's expected he will touch on u.s. security. this comes about concerns about another lone wolf attack. at the white house, kevin cork, fox news. the father of a student at uc santa barbara who was killed in a mass shooting last year will be among those in the audience at tonight's state of the union address. richard martinez has traveled around the country calling for tougher gun chrome laws. his son was shot to death by a gunman who killed himself in

santa barbara. >> you can watch the entire state of the union address. live coverage begins at 6:00 tonight. a deepening mystery as more sea birds turn up on the shore covered in a mysterious gray, sticky substance. what state officials are expected to do to get experts closer to solving the mystery. >> we told you about the investigation about the claims that the patriots cheated. now we're learning the interception that sparked the investigation.

a paddleboarder in saferl sharing breath-taking video of his encounter with killer whales. he was paddling off the shore of laguna beach when a pod of orkas started to swim up to him and show off. one of them went directly under his paddleboard twice. he said he was too excited to be scared. he's sharing the video to raise awareness for what he calls these incredible magical fee creatures. the state is conducting tests to find out what's killing sea birds. about 300 birds have been found covered in a gray, sticky substance that does not come

off easily. 80 birds have died so far. many have died even after being treated at the international bird rescue center in fairfield. >> we call it the golden hour or the window of opportunity to get the birds in, in time so they can get healed. some bay area hospitals are taking steps to make sure the flu does not spread inside their facilities. the mercury news reports owe conenhospital and san luis are telling people with flu symptoms not to visit loved ones who are patients. the el camino hospitals are not allowing people under 16 to visit. spokesperson tells the paper children are little incubators for the flu. police in atherton are warning people to be on the

lookout for a many acting suspicious. a man was seen peeking into a home on souther land drive. he entered a guesthouse. officers could not find him. someone reported someone entered another home and opened windows and doors but did not take anything. police released these sketched based on two different witness descriptions. he's described as latino with a slim build and goatee. the central coast got a jolt by a 4.4 magnitude earthquake. it struck around 5:30 centered near greenfield. according to the usgs it occurred around the san an drapeious fault. no reports of injuries or damage. dozens of stanford students are back in class after being

arrested for demonstrating the recent police killings of unarmed african-american men. the protesters were dropped off in the middle of the bridge and blocked traffic until police were able to get a bus to move them off the bridge. all 68 protesters were cited for obstructing entry and movement on public lands and were released an around -- released around 8:30 last night. the ski season started in strong. but so far january has been bone-dry. that's definitely affecting the snow conditions around lake tahoe. donner ski ranch announced it has to close this week due to a lack of snow. >> riding up the gone due law -- gondula, you can see brown every where. >> many resorts have posted signs warning to stay on groomed trails and be on the

lookout for rocks. well, hard to believe we'd follow a dry january. the driest ever last year where we only had .06 in san francisco and an even drier one. we're on track for that unless maybe next week some moisture coming up from baja might play into the picture. we shall see. not a consensus on that. food for thought. wouldn't be until next week. dry, dry, dry. there's been a tiny bit of rain. rain up into mendocino county, lake county. for most of the bay area and also for the reporting stations, san francisco, the dry pattern continues, but maybe some cloud cover coming up. we'll have to keep an eye on that for early next week. but until then we're looking for warmer weather, not so much today but a warmer pattern will kick in starting thursday and then a lot a bit friday into saturday. sunday could see very warm temperatures, especially by the coast with mid- to upper 70s in everything falls into place.

had high clouds moving over us this morning. most have cleared out. the fog is beginning to lift for most. sfo and oakland airports both report fog at noon and temperatures are on the cool side. there go the high and mid-level clouds. 50s on the temps. 51 napa. 50 in san rafael. a lot of locations, the warmest, half moon bay at 57. walnut creek is in there. not that much of a difference. wind is variable it's all over the place. northwest 16 at half moon bay. north at mountain view, hayward has a west wind, there's a little component of an easterly breeze. high pressure wants to build in. you can see it's already deflecting that system well to the north. it will be a slower process. we have to to wait until thursday. 46 in tahoe. one better than reno. 54 ukiah and sacramento. 62 in monterey and also san diego. the cloud cover from this morning has burned off, the fog is beginning to burn off. but the fog in the valley is still there. mostly cloudy morning is giving way to a partly sunny afternoon

a to maybe mostly cloudy for some. it would be rather ironic if our first rain came in south. we have a long way to deal with that. clouds, sun, no rain here. but watch how this forecast model -- take you up -- watch how the weekend -- that's sunday. looks beautiful bile the coast. watch here. zoop. all the way up on monday and then tuesday a possibility, again, just -- we'll see. that would be very rare for january. cloud, sunny, patchy fog 50s and 60sent temps. we're in the -- 60s temps. if the fog is still lingering, it will be tough to get above 59. then we start to turn things around. it looks very warm by the coast as we head into the weekend. warmest temp looks to be on sunday. that 76 is around santa cruz.

other areas -- >> still, it will feel like strong. >> yes. we're hearing what may have kicked off the nfl investigation into the league ally so-called deflate gate. the colts reportedly became suspicious after this jackson interception during the afc championship game on sunday. he gave the ball to a member of the colts' equipment staff who noticed it was not fully inflated. an underinflated ball would be easier to grip, throw and catch. nfl rules say if 57b illegal ball -- if an illegal ball is used, the team could be subject to discipline including $25,000 fine. happening now in san francisco, the giants are officially introduce a new outfielder. nori. he signed a one-year deal. the 33-year-old used to play with the royals. he becomes the fifth japanese- born player to play for the giants since 1964.

a way to help keep track of your alcohol consumption. the new device aimed at college kids to help them monitor themselves and their friends.

corporate and economic news was pulling the stock market lower for much of the morning as healthcare companies and housing tumbles. things have crossed into

positive territory. crude oil is 46.05 a barrel. the dow is currently up 14. the nasdaq is up 26. and the s&p is up 4. looks like google is getting ready to climb aboard space x. the wall street journal reports the company is close to investing nearly $1 billion in space x for a global satellite internet project. that investment would reportedly value space x at more than $10 billion. last week, elon musk, the ceo of space com. and tesla motors told business week the satellite would cost $10 billion to build. and take at least ten years. aol is reportedly about to undergo restructuring which would mean pink slips. the company is preparing to lay off staff and shut down some of its underperforming websites it's not known which ones or how many employees will be affected by the numbers are not expected to be massive.

some college students have come up with an idea that would allow people to keep track of their alcohol consumption. the vive bracelet measures a person's blood alcohol content. every half-hour, the wristband vibrates. if someone in the group doesn't squeeze it an alert is sent to the rest. the idea is to keep from losing control and possibly getting into unwanted situations. >> you arrive to the bar, you sink it up with a profile and your friend's group. ated of the day -- at the end of the day, you hand them back to the bar to be recycled. >> the bracelet is not on the market yet but the students say they have a lot of interest from potential investors. we're following new developments in those mysterious bird deaths. we learned it's spreading and now bird cover in gray goo have been found along the peninsula. there is a chance we'll have

more information from the state this afternoon about what this goo could be. those developments at 5:00. thank you for making ktvu your choice news. have a great day.

- [voiceover] : new devices are combining with the human body to change our world. - as we learn more about how to make things smart we're also slowly understanding what makes people smart. - this man hears in color, all thanks to this antenna implanted in his skull. - i feel cyborg, i am technology. - modern spacesuits face a watery test on earth. i put on a headset that gives me a different kind of brain power, wearable technology. we will find out more in this week's edition of earth 2050. hi, i'm joe penna and welcome to earth 2050. the old saying that clothes makes the man looks like it's gonna to take a new meaning as we approach 2050. entrepreneurs and futuri