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A swat team arrives at the scene of a shooting in San Bernardino, Calif. on Wednesday,  Dec. 2, 2015.  Police responded to reports of an active shooter at a social services facility. (Doug Saunders/Los Angeles News Group via AP) MANDATORY CREDIT
A swat team arrives at the scene of a shooting in San Bernardino, Calif. on Wednesday,  Dec. 2, 2015.  Police responded to reports of an active shooter at a social services facility. (Doug Saunders/Los Angeles News Group via AP) MANDATORY CREDIT

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    Fmr. U.S. Marshal: Quick police response led to killers

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Fmr. U.S. Marshal: Quick police response led to killers

Arthur Roderick, former Assistant Director of the U.S. Marshals told CNN's Jake Tapper the quick response by law enforcement allowed them to gather information leading them directly to the shooters.

Fmr. U.S. Marshal: Quick police response led to killers

Arthur Roderick, former Assistant Director of the U.S. Marshals told CNN's Jake Tapper the quick response by law enforcement allowed them to gather information leading them directly to the shooters.