SAN BERNARDINO, Calif. – FBI said Monday that the San Bernardino shooters had both been radicalized “for some time,” but investigators are still trying to determine their links to foreign terror organizations.
Officials also said the assailants had gone to gun ranges within the Los Angeles area in the days before last Wednesday’s massacre that killed 14 people, the Los Angeles Times reported.
Meanwhile, a friend of one of the shooters entered a mental hospital after the attacks, while investigators probed whether he provided two of the weapons recovered after the massacre, according to two law enforcement sources.
Federal authorities interviewed Enrique Marquez of Riverside over the weekend after discovering that he had given the assailants — friend Syed Rizwan Farook and his wife, Tashfeen Malik — two semiautomatic weapons. A source said there was no indication at this time that Marquez had any knowledge of the plot.
On Sunday, the FBI seized items from Marquez’s home after having spent several hours there the day before, according to neighbors.
The agency had previously issued a confidential All Points Bulletin to local and federal authorities for Marquez. Investigators are trying to determine whether the friend purchased the weapons used in the Wednesday massacre that left 14 dead and 21 injured, according to a law enforcement source.
Federal authorities continued to scour the backgrounds of Farook and Malik to determine what sparked their radical turn and whether they received any outside financial support to carry out the deadliest terrorist attack on U.S. soil since 9/11. The married couple died in a shootout with police hours after their rampage at the Inland Regional Center.