In the final moments of a life defined by violence, 60-year-old Edward Zakrzewski thanked the people of Florida for killing him "in the most cold, calculated, clean, humane, efficient way possible," breathing deeply as a lethal drug cocktail coursed through his veins.

A man convicted of the 1994 killings of his wife and their two children became the ninth person put to death in Florida this year, his death Thursday marking a state record for a single-year execution total since the U.

Florida has executed a 60-year-old Air Force veteran for killing his wife and two children in 1994, marking a record ninth execution for the Sunshine State.