As their colleagues were cut down by gunfire, three men rushed a shooter in an attempt to thwart the San Bernardino terror attack, according to an in-depth report of the massacre that provided new details Friday.

The three county employees were shot in the rampage by a colleague and his wife. The report did not say if any survived, though a federal prosecutor hailed their sacrifice.

“These victims had no chance to protect themselves as a result of the callous perpetration of violence, while others heroically sacrificed themselves in an attempt to stop the shooting,” U.S. Attorney Eileen Decker said in a statement. “In the face of this unfathomable suffering, the law enforcement personnel and citizens who put themselves in harm’s way to help others exemplifies the very best that our country has to offer.”

The report by the Police Foundation, a policy study group, and the Department of Justice provided a detailed account of the pandemonium that unfolded as the Islamic extremists opened fire at a Dec. 2 meeting of the man’s colleagues and, minutes later, as police first arrived at the scene of horrific bloodshed.

Syed Rizwan Farook and his wife, Tashfeen Malik, killed 14 people and wounded 22 others in the massacre at a training event and holiday gathering of the San Bernardino County Health Department, where Farook worked as a food inspector.

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