David Pittman, a Florida man convicted of killing his estranged wife's sister and parents and setting their house on fire in 1990, was executed by lethal injection Wednesday evening at Florida State Prison.

Pittman, 63, was pronounced dead at 6:12 p.m., according to the Department of Corrections. His execution marked the 12th in Florida this year — the most in a single year since the state reinstated the death penalty — and the 31st in the U.S. in 2025 .

Gov. Ron DeSantis, a Republican, has signed more death warrants this year than any of his predecessors. Two additional executions are already scheduled in Florida this fall.

Pittman was sentenced to death in 1991 for the murders of Clarence and Barbara Knowles, both in their 50s, and their 21-year-old daughter Bonnie Knowles.

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