An armed officer who stood outside a Florida school as a gunman killed 17 people has been arrested and faces multiple charges, including child neglect and perjury.
Scot Peterson, a security guard at the Marjory Stoneman Douglas High School, did not enter as shots rang out last year and later resigned.
Soon afterwards, authorities release footage showing Mr Peterson waiting outside the school as the shooting was taking place.
Following an investigation by the Florida Department of Law Enforcement (FDLE), Mr Peterson was arrested on Tuesday on seven counts of neglect of a child, three counts of culpable negligence and one count of perjury.
The investigation showed Mr Peterson “did absolutely nothing” to prevent the shooting, FDLE Commissioner Rick Swearingen said in a statement.
“There can be no excuse for his complete inaction and no question that his inaction cost lives,” he added.