At 8:22 Wednesday evening, 65-year-old Robert Waterhouse died by lethal injection.

He had been on death row for more than 30 years after he was convicted of murdering Deborah Kammerer from St. Petersburgh.

He was supposed to be executed at 6 p.m. but Waterhouse's attorneyes applied for a stay request 15 minutes before the process could begin. 

At a press conference following the execution, family members of the victim said they felt a sense of closure.

Linda Cope, Deborah Kammerer's sister, said the two of them had been very close.  

They went shopping together, planned their chidren's birthday parties together, and went on family vacations.

She says her sister didn't deserve to die that way.

Earlier this evening members from Floridians for Alternatives to the Death Penalty peacefully protested saying the death penalty is expensive and a waste of taxpayers money.

But family members hope Kammerer is now resting in peace.

"Why did this have to happen to her? She was such a good person," Cope said, reading from a statement at the press conference.  "The monster that killed her was Robert Waterhouse. I came here today hoping for closure and feel that justice is finally been done."