Former Broward County Sheriff’s Deputy Scot Peterson was arrested on Tuesday following a 15-month investigation into his actions during the Marjory Stoneman Douglas High School shooting.

Peterson is facing seven counts of neglect of a child, one count of perjury and three counts of culpable negligence.

“The FDLE investigation shows former Deputy Peterson did absolutely nothing to mitigate the MSD shooting that killed 17 children, teachers and staff and injured 17 others,” Florida Department of Law Enforcement Commissioner Rick Swearingen told WCTV. “There can be no excuse for his complete inaction and no question that his inaction cost lives.”

Former Broward Deputy Scot Peterson has been arrested on felony charges. He cowered in Parkland while my sister died defenseless and lied about his failure to confront the shooter. I hope he spends the rest of his life in prison. — Hunter Pollack (@PollackHunter) June 4, 2019

“I was pleased the Florida Department of Law Enforcement in conjunction with the State Attorney’s Office conducted a thorough investigation that yielded the arrest of Scot Peterson. All the facts related to Mr. Peterson’s failure to act during the MSD massacre clearly warranted both termination of employment and criminal charges. It’s never too late for accountability and justice,” Sheriff Gregory Tony said to WCTV.

Coward Deputy Scot Peterson was charged with: – 7 counts of child neglect

– 3 counts of culpable negligence

– 1 county of perjury I haven’t stopped working to hold people accountable since my sister was murdered last year. This is a huge victory. She is smiling in heaven. — Hunter Pollack (@PollackHunter) June 4, 2019

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