A friend of the couple has said that Farook's radicalization coincided completely with his arranged marriage to Talik during his pilgrimage to the Haj in 2013.
Prior to that he seemed an assimilated and moderate Muslim, born in the US. He had a good job, good education, was well liked, quiet, did his job well. He has a brother who is a Navy vet, with service medals and commendations for the Global War on Terror and an Honourable Discharge.
Talik's background seems completely mysterious. The press haven't even dug up a photograph of her yet. She is known to have come from Pakistan by way of Saudi Arabia. Two sources of the export of the most virulent forms of Islamic terrorism through the Wahabee sect, connected to branches of the Saudi royal family, and the Pakistani Intelligence Service which is deeply connected to Al Qaeda, Bin Laden and ISIS.. all Sunni Muslim outgrowths. The PIS orchestrated the Mumbai terrorist attacks in 2008.
What mother would drop off her 6 month old child, and embark on a mission of mass killing and suicide, unless she was completely indoctrinated by an ideology.. over a period of years.. to a point of utter fanaticism. It seems possible that Talik was a planted sleeper for these groups. Gaining entry to the U.S. by way of marriage to a naive, devout Muslim husband. She might well have been developed for the role as an implanted terrorist since she was a child.
It seems probable that Farook married a terrorist.. and became one... by way of the marriage bed.