the fbi is still searching for a motive for the shooting in san bernardino and treating it as an act of terrorism. >> reporter: the fbi says their investigation could take quite some time. they have not released a motive, but they do say this is a terror investigation. this morning a closer look at the husband and wife who many saw as an ordinary family until they murdered 14 and wounded 21. >> the investigation so far has developed indications of radicalization by the killer and of the potential of inspiration by foreign terrorist organizations. >> reporter: the fbi now poring into the lives of syed farook and tashfeen malik. she was the americanized housewife from pakistan who pledged support for isis on facebook. he was an american born food