Killers Were Long Radicalized, F.B.I. Investigators Say
The couple who carried out the deadly attack that killed 14 people here last week had long been radicalized and had been practicing at a target range days before their murder spree, the Federal Bureau of Investigation said Monday.
The characterization of the husband and wife team, Syed Rizwan Farook and Tashfeen Malik, came as F.B.I. investigators were leaning away from the theory that Ms. Malik, who declared allegiance to the Islamic State on Facebook around the time of the attack, had led her American-born husband to the violence.