San francisco. We begin with Deborah Villalon live in napa with some of the problems this weather has already caused. Deborah. Reporter we hear it every winter, exposed pipes have to be covered. Thats the sound of moisture. Detected in the sealing of this apartment. Moisture started coming down the walls like this. Reporter water comes from walls and cabinets. Immediate suspect the freeze. It was the cold. Very cold outside. Was it inside the pipe or fitting . Reporter the pressure put a slit in the copper. This owner has done a right thing and insulated the pipes. Reporter usually its the outdoor pipes everyone worries about. Wrapping them for warmth. Youre gambling if you dont. Reporter and some people let faucets drip all night. As long as its flowing it wont freeze. But why waste the water if you insulated them right. Reporter after starting her day with frozen pipes at home and at work, this woman came to buy covers. We had a couple of classrooms that did not have water this morning. Reporter catch it early by listening for the trickle. You should listen to that stuff. Turn off all the tvs and stereos and listen for that noise of water flow. And if you hear it you should go inspect. Reporter in another napa apartment the carpet is soaked. Its replacement now snugly wrapped. And the landlord glad it wasnt worse. Luckily we found it. I came in to visit another apartment and i see the water coming out. And we immediately went in and found this. Reporter water was flowing under the front door starting sometime after the tenant left for work this morning. This taste of pothole in wine country definitely has people talking. Debora villalon. Now the bill on just how cold its going to get. And also a chance we might see snow tomorrow. The weather is changing around. The cold is going to switch out for some moisture. Were looking at that freeze warning again tonight, coldest spots will be in the north bay. Almost as cold as last night. Its colding in some places than it was last night at this time. But the dewpoints are colder in the bay. Thats going to keep the temperatures colder to the 20s than the teens. Its 29 in walnut creek. We talked about that weather system coming in here. Were going to talk more about it. But with all this cold air in place, theres a chance for more rain in the peaks. And well time some rain in the bay area that could coincide with that snow, back here in 10 minutes. Freezing temperatures overnight could mean black ice and treacherous Road Conditions in the morning. A broken water pipe on ignacio road created slick streets when that run off froze. The road outside our door was all icy, i actually slid on it. Reporter drivers should use extra caution when driving in these conditions. And tonight at 10 30, a cold campus on the south bay. Why School Officials were asked to cut back on heat even as classes went into the night. New at 10 00, attacked on a bus. Was it the so called knock out game where a random person trys to knock out someone with one punch. Some people say thats just a hoax. But not the man ktvus Paul Chambers spoke to tonight. He said the knock out game is very real and that it happened to him. Reporter anthony says the attack happened last night right here along first avenue near lake merit. He said his attacker was getting off the bus when he hit him several times. He said the attacker tried to knock him out. And we have to warn you some of the video you will see is graphic. It was a couple. One there and then one in the back. Reporter anthony tells us how he was attacked last night. He said that he wasnt being robbed just attacked. It was clear that he did not want anything i owned, that thats what he wanted. He wanted to knock me out. Reporter the bus came to this stop, the suspect began hitting him before running away. I was going to walk home last night but i thought to be safe i should probably get on the bus. Reporter Alameda CountySheriffs Office is investigating the attack as an assault. But lindsay thinks otherwise. Reporter hi folks, have you heard of the knock out game . Do you think its real . Do you think its fake. Well its not. Its real, it happened to me. Reporter some say its an epidemic others say its not real. In lindsays attack he was hit at least seven times. Its not funny and if you were trying to knock me out you didnt do it. Its called the knock out game and i think i won. Reporter we reachedded out to ac transit about this incident and our calls were not returned. If you know anything about this attacker, call the alameda Sheriffs Office whos handling this case. Paul chambers, ktvu channel 2 news. This attack comes just one month after that a gender teenager Sasha Fleishman was lit on fire. Sasha is still recovering from burns but returned to school this week. The suspect was charged as an adult. A missing teenager from Washington State has prompted the chp to issue an amber alert. Romero is seen to the left. She was last seen leaving her school in kenowith washington and getting into a vehicle with her boyfriend. Hes identified at 19yearold Eduardo Florez rosales. He was last seen driving a 2001 2003 hunter green ford escape with a roof rack and custom wheels. The vehicle has temporary washington plates. They believe the two could be heading to mexico. Continuing coverage now on the death of Nelson Mandela. He was a man who was loved and respected all over the world. Earlier today he died at the age of 95. Many South Africans were drawn to his home in johannesburg. They sang songs to celebrate his life. Many said they were shocked at his death even though he had been sick for almost a year. Mandela was the first african president elected. News of his death came from current president jacob zuma. Our nation has lost its greatest son. Our people have lost a father. Reporter Nelson Mandela was a statesman and man of the people. He spent 27 years in prison for fighting apartide and was celebrated when he walked free with his then wife. Mandela was already a hero by then. An International Symbol of the fight against injustice. But mandela never expressed bitterness about his time behind bars. Instead he called for reconciliation and forgiveness. Four years after his release he was elected president. He also won the noble peace prize along with the man who freed him, f. W. Declark. Mandela lived thousands of miles away but had a profound connection to a the bay area. Mandela is being remembered and honored tonight. Christien kafton has the story. Reporter its clear what an influence Nelson Mandela had here. He influenced people here and in south africa and around the world to make the place they live better. Before his relief from prison mandela was a symbol of the injustice. Uc Berkeley Students held a 3 1 2 month long series of demonstrations. Urging the university to divert millions of the dollars from the african government. Among those, now assemblywoman nancy skinner. The only people i can think of are like gandhi, chavez. He came back to the east bay to the Oakland Coliseum to thank the hundreds, the thousands of people that had been there, americans in solidarity with south africa trying to get that regime thrown. Reporter nearly 60,000 people turned out to see the man who had endured more than a quarter century of inprisonment. Willie brown still has the photographs from that day and remembers a humble man. He carried off the president s as if he was totally unaware of how significant he really was. Reporter brown says mandela inspired change far beyond his homeland. I think his legacy will be the world not just south africa. I think what he did for south africa was as significant as what lincoln did with slavery. Reporter ultimately the uc system did divest more than 2 million into the fight. President obama said he was one of the many millions inspired by Nelson Mandela as he mourned his passing. He called him a moral giant. We have lost one of the most influential, courageous and profoundly good human beings that any of us will share time with on this earth. Reporter the president ordered the flags at the white house, federal buildings and military bases to be flown at half staff until sunset monday. A loaded shotgun at a Bay Area School and parents werent notified until later. Two days later you get a voice mail and im driving, i was like what. The reason the school wasnt even put into lock down. The unusually cold spots, the rain still to come and where snow is 2 investigates questions about a Waterfront Park in San Francisco. The offer support the plan by buying a brick with a message. A man says the port isnt being up front about the project or where the money goes. Reporter the park is being built here. The activist tells us he wants people to know exactly where the money is going to be spent. Reporter work is just getting under way for the 21 acre Waterfront Park. The port of San Francisco is selling commemorative bricks to the public. Similar to what is outside of at t park. They will line the walkway. Rectangular ones are being sold for 200 each. And the larger ones 300. Were already getting quite a bit of positive feed back from the public. Theyre clambering to buy them. Its very deceptive. Reporter jon golinger says he started a Facebook Page to tell people where the money is going. It says nothing about the americas cup. Reporter that fscoc is short for San Francisco americas cup organizer committee. We just want them to be honest with what theyre telling people. Right now its extremely misleading. No were not being deceptive. This has been an open process. Reporter a portion of the money will be used to offset the improves of the park. But that the funds will also pay for amenities such as walk ways and benches. Its money coming back to the port to help us with infrastructure that was put out. Again i think that its a good thing. Reporter the park is scheduled to open fall of next year. Reporting live here at pier 27 in San Francisco, amber lee, ktvu channel 2 news. And if you have an idea for two investigates we want to hear from you, email two investigates at ktvu. Com. New information now about that brake problem on b. A. R. T. That started six to 700 passengers on a smoky train yesterday and sent nine of them to the hospital. The California Utilities Commission is now investigating. It does that when more than two people are injured. You will recall the train came to a sudden stop in a tunnel after a short circuit caused a parking brake to engage. B. A. R. T. Says the train operator didnt know how to disengage the brake. New instructions are now being sent out. The reason the cars were filled with smoke is the intakes are right behind the train. The intakes will be moved on the new trains its buying. Reforms all stem from the shooting death of oscar grant by now former b. A. R. T. Police officer mehserle on new years day in 2009. Oliver called the previous culture of the department dysfunctional. A superior court judge will lead a task force to investigate alleged crime. The president of san jose state says the task force will review the facts and then ensure the school is a safe, welcoming tolerant community. Police say four white students taunted their black roommate with racial words. The claims stem from a lesser Center Employee who pleaded guilty to misdemeanor child molestation back in august. The city worker said their names were included in a confidential police memo about the case and leaked to a newspaper. The workers were cleared of any charges. It was an emotional evening in San Francisco as people gathered to remember a young man who was gunned down over the weekend. A candlelight vigil was held to remember 22yearold uwaka. He was killed on sunday in the citys bay view district. Invest investigators claimed it happened when he met someone who said he was interested in buying a game console. Some San Francisco parents are questioning the procedures of a high school after a loaded shotgun was found on campus this week. And while theres relief no one was hurt, ktvus David Stevenson reports parents are upset and disappointed over how the incident was handled. Reporter parents and students at San Franciscos phillip and serlan Academic High School learned of a incident that took place two days ago. By the time i found out it was this morning. Two days later i get an e mail and im driving and im like, i havent heard about it. Do you realize what could have happened. Reporter police found a weapon inside a backpack. The student was arrested and faces multiple weapons charges. Reporter what the the juvenile planned to fire the weapon in the school. We dont have any information that that was his intent. At this time we believe he brought it for his own protection. Reporter a letter posted to burtons high website said no other students were involved and that student safety is the top priority. Schools called parents with the information. Some parents said they should have shared the information immediately. What if it happens again. Reporter School District officials did not return our calls. In San Francisco, David Stevenson, ktvu channel 2 news. A freeze warning in effect tonight for the bay area. Everybody except San Francisco. Its cold out there right now. A little colder in many places than it was last night. But temperatures overnight arent going to get quite as cold as the night before as they were this morning. So in napa instead of 19 theyll be 20 degrees. Were splitting hairs. Its going to be really cold tomorrow. 30 in vallejo, 24 in livermore. These are the overnight forecast lows. After these we have clouds coming in tomorrow night and that chance of rain and even snow on bay area peaks as we move into your bay area friday night. Into saturday morning back here with the details on that. Operations are now back to normal. A problem with the chlorine tank at k2 solutions prompted the advisory. Authorities were concerned that the tank could start leaking chlorine gas. People within a mile of the plant were advised to stay indoors. The tank was eventually safely emptied and the advisory was lifted. Just ahead prosecutors reveal a multi Million Dollars scheme to steal then export luxury cars. New developments in that mayor fire that burned in yosemite this summer. A hunter may face criminal charges. And a big break in a subaru. Are the hands that do good things for the whole community the environment, seniors, kids, and animals. Thats why we created the share the love event. By the end of this year, the total donated by subaru could reach 35 Million Dollars. You get a great deal on a new subaru. Well donate 250 dollars to a choice of charities that benefit your community. It feels good to be a helping hand. Homicide detectives reported a break in a cold case. How it was the shooting of an officer that inspired detectives to take a second look. Reporter tonight the story of two people who never met but whos lives crossed paths many years ago. Santa cruz, pogonit park its right off of these tracks along a trail that a body was found by two bikers. Theres two feet off the trail where they discovered the body. Reporter a teenage girl who police say was bludgent to death. This one bothered him and this one haunted him. Reporter police chief clark says baker a father himself wanted to find that killer and never found out but the case went cold. Seconds, days and years went by. And then february 26 of this year. Sergeant butch baker and detective Elizabeth Butler were killed on the line of duty. 10 months later. Its one of those things that you really, you want to do it for him. Reporter detective bruce kline had bakers cold case on hand. There was a match. Reporter a print on that card was then compared to a print taken from the body and there it was a match. Reporter pogonip chain is now cory joane lemaster of pacifica a run away. I can see butchs reaction. He would be doing that little lean into my office saying, we have a match. Reporter the work does not stop. Now with an identification its time to find the killer for the victims family and for butch baker. Mike mibach, ktvu channel 2 news. Fremont police have arrested a suspect in a home particular reu that was caught on tape. 28yearold transient Richard Banuelos was arrested this afternoon. Police say he is the man seen on this Surveillance Video we first showed you yesterday. After releasing the video yesterday investigators received more than a dozen tips which led them to capture the suspect. Federal charges are had for the hunter that started the rim fire that burned part of Yosemite National park. The fire became the Third Largest in state history and covered 230 miles. The federal government is taking over the prosecution. Investigators say the still unidentified hunter lit an illegal campfire that got out of control. A cupertino couple had been indicted in a multi Million Dollars scheme to export luxury cars to asian. Chan and chan are charged with inindictment. They used a friends business to make fraudulent charges. As a community were all just very shopped. Tonight at 10 45, how the efforts to help two families are bringing an entire community together. I like to mix things up a bit with grands mini pot pies. Only four ingredients. And a few easy