so i'm sure he'll have a speedy recovery with family members who are here. >> i hope so. thank you so much. some runners returned home today after participating in the marathon. some talked with abc 7 news reporter wayne freedman at san francisco international airport. they came home unharmed but felt scarred by the tragedy. >> just chaos there. and just everybody -- just everybody wanted to get out, get home. >> is your life different today? >> yes. you just never know. day-to-day. >> oim a cancer survivor. every day is a gift. it just reminded me, every day is a gift. >> most rubbers who spoke with wayne said they might race again next year. >> there are extra police patrols outside san francisco city hall today but not just because of yesterday's bombing. that was part of it. officers with bomb-sniffing dogs checking cans and cars

for anything sus spishus, this security was also for an israeli flag raising later tt day to celebrate israel's 65th birthday that. was cancelled when the president ordered flags flown at half staff. city crews quickly lowered flags around civic center plaza. >> something else to think b security for san francisco biggest foot race is a growing concern tonight. organizers talked with mark math use who joins us from the starting point. mark? >> 30,000 runners expected to sign up for the beta breakers probably twice that many will run. 100,000 were in the area where a huge crowd is expected to gather on the third sunday in may. the city and organizers promising safety will be of porpance.

>> where there is a large crowd, police will provide guidance as to what we need to do to ensure the race is safe. >> angela is waiting to hear from police. yesterday the chief says the department is taking a look. >> we'll take a look at the plans for upcoming events and will make sure plans are as tight as they've been. >> a security expert now runs a private firm says the bombing in boston will change the landscape of large public events. >> they're going have to take a look at security beyond the road itself. beyond the roped off area. >> saying security would want to sweep the areas until the race, and maintain those areas as secure until the race is over. that could mean security primt ters set up block as way from

the race course. >> no one is going like it. >> for beta breakers it's a problem because the race director did not on the race reported the deal over $1 million. and asked thor what extent she can spend on extra sem ti. she won't say. >> i don't want to speculate as to what guidance we're going get until we sit down to have those conversations. >> and a key piece in planning will be analyzing what happened in boston, that is going on rate now. and while particulars are still up in the air our expert says there is no question that venues for events like this are going to change. nobody wants a repeat of what happened in boston.

>> stay with us for the latest developments on the boston bombings. they'll continue reports live at 6:00 we have a slide show on our web site. >> more still to come on this story. let's move on for the moment. police investigating the report of a student taking a gun to school. staff called police to say an 8th grader had a gun. the student took off before police arrived officers found the 14-year-old boy but have not confirmed whether he was armed. >> south bay tonight authorities just announced waits a coordinated act of vandalism that took down electricity and phone service today. abc 7 news is live tonight with the story. carolyn? >> some consequences hours

later this is traffic along monterey road and motorists being forced to turn around at metcalfe being diverted away from the substation this, began after 1:15 this morning. the jant clara county sheriff says the investigators believe two incidents are connected it's sabotage. >> sky 7 hd was on the scene after reports of gunshots near this substation. just outside san jose. the sheriff's department is conducting a criminal investigation. >> they had a breech in the security sense. and that someone had to gain access to the substation and damaged i believe there are radiateor autos five of the seven banks of trance formers appeared to have been shot up, leaking oil. authorities in charge of the power grid are asking south

bay customers to conserve electricity at least until midnight because of what it calls severe damage. the state flex alert warning is just a precaution. >> there may be equipment that may need to be taken off line. >> someone cut an at and t phone cable. people have been unable to call services like 911 from their land lines. >> they can't access it now we've put out information on our stations and this is to use their cell phones. >> when it's not just emergency services and not just land line phones at the lito art and framing shop, this should have been one of the busiest days. >> we have no phones today. no phones no computers. there is no online anything,

it's been quiet. >> two incidents involving two utilities. >> this, because of the time frame and distance, we believe it's related. >> so that is santa clara county sheriff saying yes, she believes these were coordinated attacks. you may recall in 2009 there was a similar incident involving phone cables and a reward was offered. today, well, they're saying that there are and maying film that could help in terms of solving this case and investigators are now canvassing the neighborhood. >> the nature of the state juvenile court system is making it difficult to know

whether three teens accused of the sexual battery involving audrie pott. she killed herself after what her parents call cyber bullying. >> no one would confirm this f.there was a hearing today to consider releasing the teen-aged boys. the family told reporters the hearing was being held today. one prosecutor outlined factors. >> also considering the home situation of the minor. do they have a stable home? are they truant? >> after three hours, we were told the family asked to slip out the back way to avoid reporters and cameras. ed vasquez speaks for the attorney. >> everything that happened in there has to stay confidental. >> the attorney filed this suit against the teenagers.

the suit named michael whose daughter attended a party. potts claim the teens had access to an unlocked liquor cabinet. according to parents she passed out after drinking alcohol laced gatorade and spoke woek up without her clothes on and writing on her private parts. >> these crimes are not juvenile. sexual assault is an adult crime. these boys distributed the pictures to humiliate and further bully my daughter if remaining here in detention we're told their living in a facility similar to a school dorm. and they have joyed games to play. >> thank you.

>> still to come here at 5:00 airline responds to those impacted by the boston bombings. detail that's is good news for the passenger autos something else forced american airlines to ground flights foremost of the day. >> i'm abc 7 news sandhya patel. breezy now but we're going see near-freezing temperatures. i'll show where and how cold by morning coming up. >> and it's official. line up going to rock outside lands this summer. we're talking big names. stay with us. ñ@ñ@ñ@ñ ñ,ñjñzñíñt

we have new information on a developing story from

washington, d.c. that we first brought you on abc 7 news at 4:00 an envelope testing positive for ricin was sent to a u.s. senator. the letter on its way to mississippi senator roger wickers office. security workers in one facility. both senate and house post offices have been closed down while they decontaminate has a -- as a precaution. >> service has been restored this evening today, a computer glitch forced the airline to go out -- ground flights across the country this, is sky 7 hd video of the planes stopped today. american flies 275,000 passengers per day. however, some passengers here in the bay area were mabel aibl to take inconvenience in stride because of the situation.

>>ed kind of crazy. i'll get home. i probably just have a difference of getting everybody through that i can imagine is the problem. >> they've been fine. i don't think there is anything they can do. >> officials say grounding is not related to monday's boston bombings but delays can persist. >> hundreds turned out for a paramedic that was killed. his wife held on to a flag honoring his service. the mourners included family members and fellow paramedics, police officers and firefighters. he died after being shot in oakland april 7th. now, nick smith is live where there is a major break in this

case. >> the chief is about to talk into a press conference now. my colleague, allen wong is upstairs and sending me information via text messaging but i can tell you that we can confirm an arrest has been fid maid in this case. take a look at some of the video from the scene on april 2, two weeks ago today. this 34-year-old shot after leaving his parents home two weeks ago. the paramedic was driving in this 5200 block of keller avenue when struck. officials say that boyer lost control of the blue honda before he went down the ravine. police started investigating as a homicide. you'll remember a week ago we learned a car they believed to be connected with this crime had been recovered by police department investigators. we know police will confirm an arrest has been made in the

investigation into the homicide of boyer we're only minute as way from the chief holding a press kons fren our sources tell us the individual is possibly a male, 16 years of age this, information i'm still waiting to confirm with the chief. we'll bring you more information and you can follow us on yin for the latest information. >> passengers are investigate geting a break of sorts from the airline. >> yes. mike grinly is here with details on this. >> ra that is right. any passenger resignation for logan through tomorrow to make change was out encouraging change fees. the waiver to adom com date passengers affected by the bombing.

following airlines announced razor of feeds. each airline policy is different so you should contact airline or check their web sites for details. you may able to buy a low cost cell phone from apple. in a business analyst are correct a lot of you will be buying. apple could sell 75 million low cost flowns last year, however, has in the confirmed it plans to do this. and in the meantime a bill banning techting in california has passed the assembly transportation committee and would undo legislation passed last year that allowed hands free texting. saying newest information is that it's just as distracting as regular texting we'll follow this as it works it way

through. >> there you go. >> breezy still out there. >> it s we did see temperatures coming up a few degrees because of the lighter winds if you will. here in the bay area, we're not seeing any moisture but we're seeing light showers possibility in this area throughout the next couple hours until sun goes down, frost advisory going up tonight at 11:00 p.m. running until a.m. tomorrow. so you can see showers starting to taper a little bit. i want to show you a view from our tv you can see it's cloudy

right now this evening, drier forecast. 68 in oakland. highs into low 50s along coast into upper 60s, i want to introduce you to a camera this is our exploratorium camera. and check out this view. this is gorgeous, just a couple clouds out there. we have a small craft advisory so watch out for choppy waters highlights cold inland patchy morning frost. warming trend continue was a dry pattern throughout the weekend. sheer look at satellite picture. area of low pressure moving away.

high pressure dominates here. tomorrow morning do expect a chilly start in the north bay valleys we're going to get down close to freezing there in napa. 33 degrees, bundle up. santa rosa 35 degrees. upper 30s livermore and in santa cruz so you'll need a jacket or sweater, you can lose that layer will be mild in the south bay. 72 degrees in san jose. low 70s in menlo park. sunshine in daily city. low 60s there. north bay communities blue skies going to be a beautiful day. head out towards east bay, hayward, 68. inland communities into low

70s. warmer weather throughout the weekend. low 80s inland. abc 7 news has another great weather resource for to you follow for latest bay area weather conditions get weather tweets from your favorite weather team. >> looks like it's going to be shining for the entire seven day period. >> the reason behind the irs zeroing in on the bay area for tax cheats. >> we're one of the top five zones where rurnz are getting a bit closer

proposal to remain name san francisco international airport after harvey milk may get competition. nine members to the naming committee this group includes united airlines representative,

fire chief and a city council woman. committee will establish guidelines for renaming airport and may recommend someone other than milk to honor. >> he has come up, certainly someone worthy of consideration but there are other names as well. and this committee is going hold hearings to evaluate the names. >> first hearing taking place next month. the kplee plans to ground plans through a ballot initiative. >> one group says state gives away $700 million in tax credits every year to corporations. that are not required to create any new jobs. a new irs study shows five clusters of tax cheats around the country. one of those is here in san francisco. >> limited to very wealtho folks who have tax attorneys trying to find ways to get around paying their share if

those folks are not in fact doing that, and should be from service wez depend on, we think it's a good thing the government steps in and makes sure that that happens. >> they found other clusters in los angeles, atlanta and washington, d.c. using information to target business owners to watch out oom people affected all across the country by what happened in boston. more on that for you coming up. >> we'll be right back.

now a live report to a live report arrests for the murder of quinn boyer. the police chief says they've arrested five people between 14-166789 boyer snot a stop light last month. nick smith swril more for you coming up tonight at 6:30. >> people nlt bay area now have a chance to offer their condolences or words of encouragement to victims of

the bopping autos yes. several books will be available for you. >> there are other books in san mateo. you can offer sentiments. >> so they will get the chance to see what you write. >> that is it for abc 7 news at 5:00. >> an hour long edition this is "world news." tonight, on the trail of a bomber. the new clues, metal fragments from a pressure cooker like this, at the heart of an investigation. video of multiple angles of the key moments revealing exactly what the bomb did. we show you where the bomb went off, and the force of the impact. and in other breaking news tonight, this out of washington.

>> a letter sent to a senator found to contain a deadly substance. what is behind it? details pouring in right now. and back in boston, the new casualties, including an 8-year-old boy and a beloved daughter. >> i can't believe this has happened. and the story behind all those moments on tape we watched together. as our abc news team is standing by, this special one-hour edition of "world news" begins. good evening. as we come on the air, this is a country in search of a bomber, and there are new clues inside those bombs. at this hour, investigators think one or both of the bombs may have been encased in an ordinary, metal pressure cooker. it may have been packed with nails and ball bearings to inflict more injury. and tonight new details are

surfacing about those who died, including the 8-year-old member of the little league. while at the white house, the flag flies at half staff, the president has just announced he will head to boston on thursday. and our team is standing by to bring you the latest reporting, and we'll start with abc's brian ross who is in boston tonight. brian? >> reporter: no one is in custody, but there are new fast-moving developments and valuable new clues about the bomb and the bomber. investigators at the crime scene have already recovered the mangled remains of one pressure cooker bomb which apparently failed to fully explode, according to counterterrorism officials briefed on the case. late today the fbi said it's looking for a man carrying an unusually heavy black bag. >> the bag would have been heavy because of the components believed to be in it. >> reporter: the fbi has lots of