PARKLAND, Fla. (WTXL) - The Florida Department of Law Enforcement is investigating how officers responded to the shooting at Stoneman Douglas High School.
Deputy Scot Peterson resigned Thursday after Broward County Sheriff Scott Israel suspended him pending an investigation.
According to Peterson's lawyer, when he arrived at Building 1200, where authorities say all of the killings took place, Peterson said he heard gunshots but believed the gunshots were originating from outside a building on the schools campus.
Some experts question his version.
Seventy-four Republican Florida state lawmakers are now calling for Gov. Rick Scott to suspend Israel for incompetence and dereliction of duty.
Israel says he will not resign.
