PARKLAND, Fla. -- Florida House Speaker Richard Corcoran and 73 other state lawmakers have asked Gov. Rick Scott to suspend Broward County Sheriff Scott Israel for incompetence and neglect of duty in the aftermath of this month's high school massacre.

In a letter sent Sunday, Corcoran wrote that Sheriff Israel "failed to maintain a culture of alertness, vigilance, and thoroughness among his deputies."

Scott said in a statement Sunday that he understands Corcoran's concerns, but clarified "there must be an independent investigation."

Scott's office confirmed the commissioner will immediately launch a probe.

"Like me, he wants the families to have answers and for there to be full accountability. That's what the victims and their families deserve," Scott said.

Corcoran says that "a result of Sheriff Israel's failures, students and teachers died."

Israel is being scrutinized for his office's actions leading up to and during the Feb. 14 shooting that resulted in 17 deaths at Marjory Stoneman Douglas High School.

Israel has said he will not resign.

Corcoran says the sheriff's office ignored signs about the shooting suspect Nikolas Cruz reported in more than a dozen tipster calls. He also said he did not properly train Scot Peterson, an armed sheriff deputy who was assigned to the school at the time of the shooting. Peterson stayed outside the school instead of confronting the shooter.

Israel said that a deputy who responded to a Nov. 30 call referring to Cruz as a "school shooter in the making" was being investigated by internal affairs for not filing a report. The employee was placed on restrictive duty.