>> chris dale. >> that was chris dale head of communications for youtube, talking about the shooting at this point, there's still more questions than answers, but they're not sure if the suspect was an employee or not or how they got on campus. more details to come as we continue on abc7 news at 4:00. >>> abc7 news leslie brinkley went on a behind the scenes tur today. >> is bounce back capability of cured and placed pipe. they're inflating it to keep water flowing. >> we're looking for pipes that are seismic resilient. pipes that are going to with stand ground defamation, from an earthquake, from lick which faction. >> the pipes are -- the thinner cast iron pipes that were installed during the world war ii era that are breaking in record numbers. >> we think that an earthquake will result in 7 feet of offset. >> reporter: that 7 feet of movement are here where the pipes across the fault. the plan is to bring in temporary flexible lines to jump the fault and maintain water flow. and then there are 58 vulnerable tanks in the east bay hills to worry about. >> the tank is about 9 millio

. >> this is chris dale, a spokesperson for you tootube. >> officers on the scene arrived and there weresm, from first responders and from our employees. some employees went back to the building with officers to give them access to our spaces. others remained to tend to the wounded and give officers directions and give officers details about the shooter that proved critical. our employees have been instructed to work from home and making sure that wellness services are available to them. we are also revisiting with occurrence in detail and we will examine all of our offices worldwide, to make them more secure not only in the near term but the long term. we want to express our gratitude once again to the first responders, including the police, fire and medical response teams. and a huge thank you to the wider global community for their outpouring of support, well wishes and words of togetherness. your support reminds us that even in the toughest of times the youtube community comes together and supports one another. thank you. i'm not going to be answering any questions at this time. >> a

first name is chris and the last name is dale. apparently the spokesperson for youtube making a statement at the end. the new information that we did not have before is that the police chief did confirm it was a handgun that was used in this attack. he said the search of the building, we talked about the methodical search of the building, to find out if there was anybody else inside that could be associated with his. the search is over. there is no threat at all. what he did not address was a motive there was speculation that this was some kind of a domestic dispute involving the shooter, a woman, and her boyfriend at youtube. he would not comment on that and he would not identify the shooter. >> we do know that three people remain at san francisco general hospital including a man who is 36 years old and he's among the most severely injured. he's in critical condition. two other women, one is in fair condition and one is in serious condition, they are blue -- they are both being treated at san francisco general. we also heard from

in the last few minutes, the youtube head of communications, chris dale, said emotionally he was incrediblylaw enforcement and how they managed to react so quickly once the 911 calls were made. is it still in lockdown? some employees are still inside. the situation is under control, police say. what they are doing now is working on how to get those employees safely out of the building of a an active crime scene. many of the cars around us in the various parking lots surrounding the various parking lots surrounding the headquarters but gradually as the headquarters but gradually as the evening draws on, they expect to be able to go home. thank you for those updates and we will have more from you later. we have had reaction from the white house and president trump who tweeted but our correspondent peter is in los angeles to join us for a little more of their wider reaction that we get to this latest incident. what are we hearing? the president acknowledging that he has been kept date with the development in this city south of san francisco, sending out his thoughts and prayers to those victim

chris dale also said minutes ago that google and youtube would upgrade security at all of its facilities say if that meant armed security. police investigators say suspect nasim aghdam made her way into the courtyard area by going through a neighboring parking garage pedestrian door. hours before that she ca

chris dale also said minutes ago that google and youtube would upgrade security at all of its facilities around the globe. however, he wouldn't say if that meant armed security. police investigators say suspect nasim aghdam made her way into the courtyard area by going through a neighboring parking garage pedestrian door. hours before that she came into contact with law enforcement down in the south bay. however, that information did not make its way up the peninsula here to youtube security or to police officers in san bruno. >> they did not receive any specific threat of violence or anything that would have alerted them that she intended to commit any type of act of violence. >> reporter: san bruno's police chief said shooting suspect nasim aghdam visited a gun range before driving to youtube's headquarters to carry out the crime. seven investigators from two police departments spent hours at jackson arms shooting range and gun shop in south san francisco. employees at the gun range declined to comment about the investigation and police have so far not released additional information.

chris's case. they said... just about all we have time for, but one newspaper, the sun, leading on dale winton has died.ibutes as he dies at home. that is it for tonight. emily will be in new york where she will be speaking to james comey — his first interview as a british journalist that of a british journalist since he was sacked. that's it for tonight. but before we go tonight, cbeebies has launched a new slow television programme, daydreams, narrated by olivia coleman and with music by tom jenkinson, also known as squarepusher. the aim is to help children relax, by focusing on the details of the world around them. we thought we could all use a bit of that. goodnight. pause, look. bubbles rise in the light. good evening. it has been like someone good evening. it has been like someone today with temperatures into the 20s quite widely across southern and eastern areas. but even in the north into the genes. 25 in a few places in central london. higher than that as we go through tomorrow, because we keep the clear skies, so it will turn cooler overnight. we still have the weather front meandering around