Ron DeSantis said Broward County Sheriff Scott Israel showed leadership failures in the shooting that left 14 students and three adults dead.

The then-Florida sheriff's deputy who didn't rush into the building as a gunman killed 17 high school students and staff members is scheduled to testify this week before the commission investigating the massacre.

The sheriff said he welcomed an investigation by the Florida Department of Law Enforcement to examine the response by local police and the sheriff's office.