"Of course I will not resign," Israel said as he urged CNN anarchist Jake Tapper on "State of the Union."
Israel also said he was "disgusted", said an armed school resource officer did not go to school as gunfire rang out and vowed to investigate any other allegation of inaction.
"I was disgusted – I was just demoralized with the performance of former MP (Scots) Peterson," Israel said Sunday. Earlier this weekend, CNN reported that sources from Corals Springs said police from Coral Springs had arrived at the scene of the shooting and were startled to find three other Broward County sheriffs MPs, in addition to Peterson, had not entered the school.
Israel said that the actions of the deputies are being investigated.
"We will receive statements from these police officers from Coral Springs," Israel said. "If one of the deputies should have allegedly failed, we will investigate."
Israel said that Peterson was the only officer he was sure he had fallen into until now. He added that Peterson resigned after being suspended without pay.
"Our investigation on this point shows that during this horrific attack while this killer was in school, there was only one law enforcement officer," Israel said. "And that was former Deputy Scot Peterson Coral Springs arrived ̵
Israel does not deny that more Broward County MPs did not come to school after the killer left, but before Coral Springs officers arrived, but he said he had no reason to believe in the investigation at that time  In addition to his repeated promises to further investigate his agency's actions in connection with the shootings, Israel stood by its own leadership of the division
"I can only take responsibility for what I knew," Israel said. "I exercise due care and I have given this agency an amazing leadership."
Israel also said that they will investigate the situation and publish their findings if they are sure that they have all the facts.
" There is no timeline except to work as fast as we can but we want to do it right, "said Israel." We want to do it exactly. "