Angel Nieves Diaz, a career criminal executed for killing a Miami topless-bar manager 27 years ago, was given a rare second dose of deadly chemicals as he took more than twice the usual time to succumb.

Needles that were supposed to inject drugs into the 55-year-old man's veins were instead pushed all the way through the blood vessels into surrounding soft tissue. A medical examiner said he had chemical burns on both arms.

Nik Gravenstein, professor and chairman of anesthesiology at the University of Florida, said it is impossible to say how much pain the chemicals produce because inmates can't be interviewed while being executed, but he said patients given lower levels of the chemicals for various treatments "describe this as being painful."

The error in Diaz's execution led Gov. Jeb Bush to suspend executions Friday.

Separately, a federal judge extended a moratorium on executions in California, declaring that its method of lethal injection violates the constitutional ban on cruel and unusual punishment.

William Hamilton, the Gainesville medical examiner who performed the autopsy on Diaz, would not say whether Diaz died painfully until the autopsy is complete.

Florida Corrections Secretary James McDonough said the execution team did not see any swelling of Diaz's arms that would have indicated that the chemicals were going into tissues and not his veins.

McDonough also said reports that he received indicated Diaz had fallen asleep and was snoring.

However, witnesses reported Diaz was moving as long as 24 minutes after the first injection, including grimacing, blinking, licking his lips, blowing and attempting to mouth words.

Diaz was given three drugs: to deaden pain, paralyze the body and cause a fatal heart attack.

It took 34 minutes for Diaz to die. Executions by lethal injection normally take about 15 minutes, with the inmate unconscious and motionless in three to five minutes.

An attorney representing Diaz's family, D. Todd Doss, said legal action was being considered.

"We are still grieving. It continues to get worse and worse, learning the details of what happened," said Sol Otero, Diaz's niece from Orlando. "The excruciating pain and torture my uncle went through for 34 minutes. He was literally crucified."