Back. And their families. This is a special edition of nightline california shooting rampage. Good evening. Tonight there are fastmoving developments in the california shooting rampage. New information coming in right now. Multiple federal Law Enforcement officials telling abc news they believe one of the suspects is a man named syed farook, reportedly connected to the San Bernardino health department. The same department that was holding an event at the building where the shooting took place. At least 14 people dead, 17 walked in and opened fire. Two suspects are dead, killed in a gun battle with police after a highspeed car chase. Another person of interest is being detained for questioning. Abcs matt gutman is on the scene, has been following the story all day. Matt, what do we know at this hour . Reporter were learning so much more about syed farook, the alleged suspect involved in the shooting, he was the man killed in that fierce gun battle with police that happened about a mile away from here. Weve learned that he may have been a Health Inspector with the San Bernardino county department of Public Health. The environmental division. And that he may have been part of this daylong Training Session taking place right in the building behind me. Byron, i think you can see probably in the third story, the lights are still on in the building where that attack took place. An eye witness said that farook was there, he got up and left the table shortly before the shooting, minutes later all that firing took place. Through, people taking cover, 31 people shot, 14 of them killed. Farook is now believed to be one of them. His brotherinlaw went on television in a press conference saying that he didnt know what happened to his family members, that both his brotherinlaw and his sister have not been heard of since the morning. Have done what they are alleged to have done but he apologizes for everybody and hopes that those who have been hurt will recover. But a tremendous scene of chaos here and urgency and ferocity among so many of the Law Enforcement agents here. Weve been watching as armored personnel carrier after armored personnel carrier barreling through here, going from one reported sighting of a possible additional suspect to another, chasing down those two suspects, including syed farook, apparently gunning them down in that fierce gun battle, and over the past hour or so weve heard four or five loud bangs. Now on Police Scanner traffic weve heard that officers were warned that controlled detonations were taking place. We know federal officials and Police Officials have been combing through that building trying to look for additional explosives. They know they found at least one device that was suspicious. And they apparently detonated that. Matt, what about this third suspect . Weve been hearing about it all day. Reporter well, we know that theyre looking for him. Because they basically shut down an entire neighborhood. Most of the citys been shut down. They were really going door to door in a neighborhood about a mile directly behind me. So close to the irc that building thats lit up. Again, s. W. A. T. Teams barreling through, going door to door. They heard reports about a suspect hopping fences. So they immediately went there. There are helicopters in the sky. Trying to locate this person. Apparently it is not the third but so many eyewitnesses there. That building has or had about 600 employees at the time. We saw hundreds of them being patted down and led out, escorted out by armed officers. Many of them had to be registered to make sure that none of the alleged aackers blended in with them. Some of them were still crying they were so so rattled by what they saw. There were so many eyewitnesss there that people saw three gunmen, a lot of the stories seemed very similar. People saw three gunmen leaving there in a dark suv, possibly a black suv, and that is apparently the suv that officers managed to corner, box in, and of course neutralize those suspects inside. The search for that third suspect is still very much ongoing. Its one of the things that continues to rattle this community. Byron, this entire city was basically on lockdown for multiple hours today. Schools, government offices, businesses, people were not even allowed to talk on the phone. Thats how much concern there and still knowing there may be a third gunman on the loose. Somebody who is capable of perpetrating an attack that bloody, of a planned attack that bloody, is certainly a cause for concern here, byron. Matt gutman reporting, thanks so much. This has been a difficult day. Chilling 911 calls and swift reaction from police. That someone had come in and started shooting and they ran into an office and shes hiding with some other people. Reporter the text message no parent wants to receive. Terry petits daughter inside the Inland Regional Center in San Bernardino when witnesses say up to three gunmen in assaultstyle clothing entered the facility and opened fire. Shooting a the my work, people shot, in the office waiting for cops. Shes okay . Pray for us. Reporter the first reports of the deadly rampage coming in around 11 00 a. M. Were getting a suspect last seen wearing a black ski mask, all black clothing, carrying a shotgun. Reporter witnesses outside scribeing a barrage of bullets. I was going home, all of a sudden boom it was like right here. Boom, boom, boom, boom, boom. They said they were on the loose. I was right behind the building and i heard all the shots. Reporter the gunmen firing inside a large Conference Room where the department of Public Health was holding a Training Session. Unknown race male allblack clothing with a black mask. We have victims down. Reporter worried families receiving Text Messages and phone calls from loved ones of the horror unfolding inside. She said she was in a room, she locked herself up, there were shooters. Reporter olivia navarros daughter janelle, a case manager for special needs children, called her mother. Have you been able to get ahold of your daughter . Just the phone call and then the next. Reporter frank montes waiting anxiously for his niece. Gutman they spoke on the phone. She said something about three shooters, machine guns. She was outside when it happened on her break . Yeah. Then what happened . They hit the floor, they ran inside to their Managers Office and barricaded themselves. You seem pretty nervous. Yes. Still upset. But shes okay . Shes okay. But i just want to comfort her. Reporter still many desperately trying to make contact with their loved ones. I havent been able to contact my boyfriend. Hes in there. Him and his brother. If you see this, ryan, call me, let me know you and your brother are okay. Reportete Juan Hernandes was staying at a hotel across the street. He came out when he heard the gunfire. Just a bunch of shots, multiple shots. Shots going off like crazy. Just one right after the other. And as i came out, then we had seen a black suv flying down the street. What i saw looked like one guy that was wearing military fatigues. Reporter within minutes a massive Law Enforcement response. Rifles drawn. Making entry through the back door, east side. Reporter a nurse filming as the operation unfolded. Theyre all geared up, rifles and everything. Rifles . Reefrgifles and everything. Reporter several down in the Conference Room, several down. Two suspects both dressed in black and inside the business on the south side is what were being told. I need some medical aid in here immediately. They went into actor protocols, the things we train for. They immediately entered the building in search of the suspects. Reporter paul la croixs son was also inside. He says the alarms went off and they were all told to hunker down and hide, shelter in place. Reporter he was among those who evacuated as lawful began usher be peel from the building hands ins the air to make sure attackers werent blending in with the crowd. Police patted each person down. Patted us down, checked our i. D. S, now were in the parking lot. Reporter 45 minutes after the first call the radio dispatch, the hunt now on for possibly three gunmen. The suspects, possibly all three, fwled in a black suv. Reporter marcus wife work in the facility and got out safely. She said the guy came in next to her office and started shooting. They locked themselves in, in her office. They seen bodies on the floor. Reporter a triage area set up in this intersection at a nearby golf course. The injured carried away on stretchers to nearby hospitals. We did receive five Adult Patients which stemmed from the original incident in San Bernardino. Of those five patients, two are critical but stable. Two are fair. And one is still being assessed. And all five do remain in the hospital. Reporter during the siege at least 14 were killed. At least 17 injured. Huge building complex going room room, looking for victims and any explosives that attackers might have left behind. That device they found, they do have it and theyre taking it out of the building now. Reporter unclear at this point whether it was an explosive. Preliminary information indicates these are people that came prepared. That they were dressed and equipped in a way to indicate they were prepared. And they were armed with long guns, not handguns. Reporter also unclear the motivation behind the deadly attack. Is this a terrorist incident . I will tell you right now we do not know. Reporter while the events unfold president obama spoke strongly on gun control. The one thing we do know is that we vat pattern now of Mass Shootings in this country. Has no parallel anywhere else in the world. There are some steps we could take, not to eliminate every one of these Mass Shootings, but to improve the odds that they dont commonsense gun safety laws. Stronger background checks. Reporter tonight, 14 people have been confirmed dead and at least 17 others are being treated for their injuries at local hospitals. I dont know any individual who couldnt be shaken up by this. You know, we hear of these Mass Shootings all over the country. And i think you all could agree that this just hit a little bit too close to home. It is home. So were all shaken by this. Were all bothered by it. 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Reporter kabc on the scene hovering above this black suv that the authorities have been searching for for three hours. Weve got multiple officers here, officers running, back east now, chasing, now on foot. Look at all those units. This is where a suspect is at. Multiple shots that were fired. Reporter windows blown out. The front door ajar. Police crouching at a safe distance away. But this was the shootout or cameras missed, that neighbor mussa malalan captured on his phone. What sounds like fireworks is a firefight, police raining bullets on that suv. The left side drivers side completely blown out. This was a very, very graphic shootout. Reporter a body lying in the street feet away. The black suv riddled with bullets. As police run into position, single file, up across the lawn. We can see tactical teams moving up the sidewalk, looking for positions of advantage right now. Police are going to run in single file because it makes you less of a target. More officers using concealment and cover behind this post, behind this hedge line. Reporter five minutes later two Armored Vehicles approach the suv from both sides. You actually boxbasically box a person in. Car in the front, car in the back, many times on the side, theres no place to go. Reporter followed by a vehicle called a tac cat, armed with a miss stick shield. The whole point of Armored Vehicles in a Law Enforcement setting is exactly how they use this particular event. Where you take the vehicles and you use them as cover to protect you from obviously other firearms or potentially other explosives. Given themselves a couple of things. Cover, concealment, and also it allows them to sort of take their time. Reporter officers cautiously approaching. But it appears the suspect inside is already dead. Two suspects dead at the scene. One male, one female, both armed with assault rifles and hand guns. Dressed in what police described as dark Tactical Gear they were dressed in kind of assaultstyle clothing i think probably is the best way to determine it. Reporter but all afternoon authorities have been looking for up to three suspects. One person of interest was seen fleeing the scene. I dont have any information on who that person is and we certainly do not know if they were involved, its possible they were not. Reporter police have detained a third suspect in a nearby neighborhood after receiving reports of someone jumping a fence. The fbi raiding this home in a read lands neighborhood using a robot to sweep the apartment. Probably tactical vehicles to go up to this house. The reason why is theres been discussions all day about potential explosives. Even the police chief mentioned there might be a pipe bomb at the initial crime scene. So keeping that in mind, keeping in mind that youre dealing with such megaviolent people, you want to make sure youre not walking into a booby trap. If you send a robot in, if it triggers something, so be it. No one else is armed. It also gives you the opportunity to send it in and then it can be your eyes and ears inside the house. And once you feel like that its sufficiently cleared at least maybe the first floor of that residence, then you make a tact cat tactical entry after that. Potentially a treasure trove of information in that house. Reporter all this happening seven miles away from the site of this mornings tragic massacre. Just emerging about the suspect. Our matt gutman is on the scene. This special edition of nightline brought to you by volkswagen. re here. Heres dad. Mom. The twins. Aunt alice. You didnt tell me aunt alice was coming. Of course. Dont forget grandpa. Can the test drive be over now . Maybe just head back to the dealership . Dont you want to meet my family . Yep, totally. Its practically yours, but we still need your signature. The volkswagen sign then drive event. Zero due at signing, zero down, zero deposit, and zero first months payment on a new jetta and otherselect models. The nondrowsy, coughing, aching, fever, sore throat, details are still unfolding at this hour about the deadly california shooting rampage. Were learning more about the alleged suspect, syed farook. Law enforcement officials and his brotherinlaw say he is an american citizen. Lets go back to abcs matt gutman in San Bernardino. Matt . Reporter byron, american citizen who worked for the San Bernardino department of health, the environmental division, apparently he was an inspector and apparently he was at this daylong workshop and Training Session with a little bit of holiday festivities that were going on in this building. According to scanner traffic and eyewitness testimony he apparently left the event about 20 minutes before the shooting began. Next time we heard of him, Police Identified him as one of the People Killed in that shootout about a mile away from here. Those bearcats, armored cars crunching his car, that furious shootout, blowing out the windows of that black suv that eyewitnesss had talked about. And then of course there was another woman beside him. Shes also believed to be a suspect. Also clad in what police call Tactical Gear. Also assault rifles in the car, possibly explosive devices as well. Now everybody is talking about that third suspect. Was there a third suspect . What is this manhunt for this third suspect and where is it taking place . There are still helicopters in the sky, dozens and dozens of and of course we cant forget the human element. Theres still 14 People Killed and their identities have not been identified. Matt, thank you. On nights like this were reminded of the words of the late nelson mandela, talking to reporters 20plus years ago. Good and evil are constantly at war