Investigators Trying to Piece Together 18-Minute Gap in Movements of San Bernardino Shooters

— -- Investigators are working to piecing together an 18-minute gap in the timeline of the San Bernardino shooters' actions the day of the massacre, FBI Assistant Director in Charge David Bowdich said today.

Investigators are asking for the public's help to place the suspects, Tashfeen Malik and Syed Farook, from 12:59 p.m. to 1:17 p.m. -- after the shooting on Dec. 2, 2015. Fourteen people died in the rampage and the suspects were killed in a shootout with police.

Bowdich said investigators do not see any indications of a foreign-directed terrorist attack. The attack seems to be an "inspired" terrorist attack, he said.

Bowdich revealed today this timeline of Farook's movements, according to officials, the morning of the shooting:

8:37 a.m.: Farook left his house.8:47 a.m.: He arrived at the Inland Regional Center, the site of the shooting.10:37 a.m.: He left the IRC.10:56 a.m.: He returned to the IRC. The shooting occurred when he returned.

2:52 p.m.: That's when Farook and Malik were caught on surveillance camera, and after that, was the shootout with police that left both suspects dead.

The investigation is ongoing, Bowdich said today.

"We will leave no stone unturned," he said.

This story is developing. Check back for more updates.