LOS ANGELES (KABC) --The top FBI man in Los Angeles is opening up about the size and scope of the investigation into the San Bernardino terror attack.
It's been six weeks since the attack that left 14 people dead and 22 injured at the Inland Regional Center, and David Bowdich said the investigation was still very active.
"We are just trying to ensure that we know as much as we can possibly know about that day and the events that led up to that day," he said.
Bowdich is the director in charge of the FBI office in Los Angeles. He said the response involved nearly everyone there, which includes hundreds of agents and other personnel.
For some, it was their first time in the field for such a tragic and emotional moment.
"Our personnel were incredibly impacted, all the way, all of us," he said. "To see such a heinous act like this take place and then to meet with the families and see and hear their anguish and their struggles since then, and hear their personal stories - it's heart wrenching."
Shooters Farook Syed and Tashfeen Malik lived what appeared to be a normal life. Investigators said they were still looking for a missing hard drive from one of the couples computers.
"...The 18-minute gap that I discussed a couple of weeks ago at the press conference where we are seeking a time of 18 minutes where we cannot account for their whereabouts - that is obviously a data point that we are concerned about," he said.
A major question that remained is whether the terror shooter got help from anyone else. Officials were looking for any connections they might have had that might lead to other suspects.
The FBI was still looking for leads and stresses that any information could turn out to be the piece that answers many questions.