Florida ? The lead executioner of a convicted killer who took twice the normal time to die never received any medical training, the executioner told a panel reviewing Florida’s lethal injection procedures Friday.

“I have no medical training and no qualifications,” said the executioner, testifying about the Dec. 13 lethal injection of Angel Nieves Diaz, which took 34 minutes and required a rare second dose of lethal chemicals.

After the botched execution, then-Gov. Jeb Bush halted executions in the state and created the panel to examine whether improvements can be made to the way lethal injections are administered. The panel’s report is due to be sent to new Gov. Charlie Crist by March 1.

The executioner testified by phone and answered questions with what sounded like a muffled male voice to guard his identity.

The executioner last received lethal injection training about seven years ago when Florida introduced lethal injections as an alternative to the electric chair.