President Trump on Friday slammed the Florida sheriff's deputy who did nothing during the Parkland school massacre, suggesting the armed officer behaved like a "coward".
Peterson has not given a reason for why he did not enter the building, Israel said.
During the deadly and tragic mass shooting last week, the guard never went into a building to try and take the shooting suspect down.
In a statement, Florida Governor Rick Scott's communications director said the governor wanted a "complete investigation" into Mr Peterson's actions.
Sheriff, Scott Israel of Broward County, confirmed the news at a conference on Thursday. "And he never went in".More news: Mike Pence Takes Shots at National Football League and Planned Parenthood at CPAC
Asked how he felt watching the footage, Israel said: "Devastated".
Six officers were standing outside Peterson's home in Boyton Beach Thursday evening, according to WSVN. "There's no question about that", Trump said of Scot Peterson on the White House South Lawn before leaving to speak at CPAC. I mean these families lost their children. "I've been speaking to them and they want to do the right thing". I've been to the vigils.
During some of the calls, handled both in person and on the phone, deputies met with Cruz's mother.
Peterson, the resource deputy at the Parkland, Florida, high school, waited outside the building as Nikolas Cruz fired shots, killing 17 people last week, officials said Thursday.More news: E-cigarettes: Study finds toxic metals including arsenic, lead in vapors
Cpt. Layfield said it's been his duty and top priority to ensure that the schools in the Indian River School District are as safe as possible, which is why he worked with the Attorney General's Office to hire retired Delaware State Police troopers, one of whom trained him years ago.
This is, as Jon Stokes of alloutdoor.com said, frankly, unbelievable.
It was a system failure at every level, from the Federal Bureau of Investigation to the local sheriff's deputies who interacted with Nikolas Cruz to the armed School Resource Officer onsite. Nobody did anything to stop a disturbed teenager that "everybody knew" was a ticking timebomb.
Authorities have said that Cruz, who was expelled from Stoneman Douglas High past year for unspecified disciplinary problems, made his getaway moments after the shooting by blending in with students fleeing the school for safety.
CHQ Editor George Rasley is a Glock ® certified pistol armorer and a member of American MENSA.More news: Trump tweets endorsement of Romney Senate run