Federal authorities continue to dig deeper into the lives of the husband and wife who killed 14 people in San Bernardino, California last week.

FOX's Gurnal Scott has the story:

The actions of Syed Farook and Tashfeen Malik, ahead of last week's massacre, are slowly being revealed.

Investigators are analyzing details of a $28,500 loan Farook got that may have helped finance more firearms and explosive materials... 

Questions are continuing as well for Enrique Marquez, a friend of Farook. Feds say he bought two of the assault rifles used in the attack.

Investigators also believe Farook planned another attack three years ago, but never went through with it. The FBI is not saying what that target may have been. Authorities believe Malik and Farook were radicalized long before last Wednesday's deadly attack.

Gurnal Scott, FOX News.