Detailed text transcripts for TV channel - KGO - 20171006:00:37:00
Overseas terror groups. >> and brian ross with us live tonight. four days later, still no motive. but as you began to point out right there, you have learned what they have begun to rule out. >> reporter: that's right. they're still stumped, but they're certain they will find out a motive, sooner or later. drilling down further now on his finances, his computer and his mental health, david. >> one thing, brian, so many people are asking about is this belief he didn't snap in the moment, because there's so many signs now he had been preparing this for some time. >> reporter: exactly. this was a...