Major Developments in the San Bernardino Terror Investigation

FBI teams are using sonar to hunt for the hard drive used by the husband and wife responsible for the deadly terror attack.
2:19 | 12/12/15

Coming up in the next {{countdown}} {{countdownlbl}}

Coming up next:

{{nextVideo.title}}

{{nextVideo.description}}

Skip to this video now

Now Playing:

{{currentVideo.title}}

Comments
Related Extras
Related Videos
Video Transcript
Transcript for Major Developments in the San Bernardino Terror Investigation
The FBI divers converge on that lake again tonight in Southern California new images this evening not far from the scene of the terror in San Bernardino. Now expanding their search using sonar to hunt for the hard drive among other things used by the husband and wife turned killers. Sources say the couple may have visited that park after the attack. But shortly before their deadly shoot up with police. Tonight with the gunman cited for rooks childhood friend is now saying about sleeper cells right here in America. ABC's Matt Gutman in California again tonight. Tonight divers back it is working late. Methodically dredging for clues looking for evidence including a hard drive from the home of the terrorist couple site for rocket fish beat mullah. We still what was left office next week proceeded pictures here the keyboard remains. It's plays well but of course the guts of the computer and taken away by Miller's whether they're able to get all of the information that is on these types of devices. That's a question as to. I'm what's have a dams the water has done and war if they try to damage the device is investigators telling us they smashed nearly all their digital data. But the search at the lake also reflecting new possible time. With the possible they were here. It's possible they were at this market. Specifically at the park and lake between the time of the Rampage of that fierce shoot with police. Critical for investigators to credit together who beat big worked with. That is ABC news is there but it Rican market for rooks friend whose assault rifles were used in the rampaged. Up to others like this man's Dick Rodriguez about sleeper cells that were just waiting Ed suggested that when it happens it's go to be create. Good for what another credit markets already told us. He says some though lines of lake there's a lot of Muslims and I'll back you are just ready to. Let's go haywire and attacking and we didn't think that's noted we just precious. He was except. With the couple's car drive missing and some of its cell phone smashed. Mark K is it is the best thing that investigators have going right now. And he's been talking to the FBI for five days already but there's a question about his mental health said investigators aren't shortly can believe everything he says David.

This transcript has been automatically generated and may not be 100% accurate.

{"duration":"2:19","description":"FBI teams are using sonar to hunt for the hard drive used by the husband and wife responsible for the deadly terror attack.","mediaType":"default","section":"ABCNews/WNT","id":"35726255","title":"Major Developments in the San Bernardino Terror Investigation","url":"/WNT/video/major-developments-san-bernardino-terror-investigation-35726255"}