a guy that was very good? you don't hear talking about those mad men like those crazy terrorists. he never talked about those kind of people. >> reporter: did marriage change him? >> i suspect. i suspect there is something wrong. >> reporter: a co worker says he's certain the marriage changed farook. >> do you believe that he was radicalized? >> yes, by the wife. i think he married a terrorist. >> he married a terrorist? >> yes. >> reporter: most puzzling, says friends, he would have been a good father and would have wanted to live with this man. >> how does someone leave their child and do crap like this?