Three decades after brutally murdering his wife and kids and escaping to Hawaii, Edward Zakrzewski will be executed today after the U.S. Supreme Court on Wednesday rejected an eleventh-hour attempt to halt the execution .

Edward Zakrzewski has been executed

Edward Zakrzewski was pronounced dead at 6:12 p.m. ET, Thursday, July 31.

In his final words he said "I want to thank the good people of the Sunshine State for killing me in the most cold and calculated, clean, humane and efficient way possible. I have no complaints whatsoever."

He then quoted Robert Frost''s famous poem, "He Stopped by Woods on a Snowy Evening," stopping partly way through.

The execution phase got underway about 6:04 p.m., his breathing slowed nearly immediately after a few hard gasps, and he was pronounced

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