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Record 12th execution set in Florida this year for man convicted of killing family Florida puts man to death in state record 12th execution this year
(about 3 hours later)
David Pittman to get lethal injection under DeSantis-signed warrant for killing estranged wife’s sister and parents David Pittman, 63, convicted in 1991 of killing three people, executed after final appeal rejected by US supreme court
A Florida man convicted of killing his estranged wife’s sister and parents and setting their house on fire was scheduled to be put to death on Wednesday evening, which would be a record 12th execution in the state in 2025. A Florida man convicted of killing his estranged wife’s sister and parents and setting their house on fire was put to death on Wednesday evening, a record 12th execution in the state in 2025.
David Pittman, 63, was scheduled to receive a lethal injection starting at 6pm at Florida state prison near Starke under a death warrant signed by Governor Ron DeSantis. The Republican governor has signed more death warrants this year than any of his predecessors. David Pittman, 63, was pronounced dead at 6.12pm local time following a lethal injection at Florida state prison near Starke, under a death warrant signed by Governor Ron DeSantis. Florida’s Republican governor has signed more death warrants this year than any of his predecessors.
Pittman’s final appeal was rejected on Tuesday by the US supreme court. On Wednesday, he awoke at 5.45am and later in the day had a meal of steak, chicken and biscuits, corrections officials said. There was no information on whether he received any visitors as the execution time approached. DeSantis spokesperson Alex Lanfranconi said the execution was carried out without complications. Pittman’s last words, according to Lanfranconi, were: “I know you all came to watch an innocent man be murdered by the state of Florida. I am innocent. I didn’t kill anybody. That’s it.”
So far, two more Florida executions are scheduled for this fall. Victor Tony Jones is scheduled to die on 30 September for the 1990 killings of two people during a robbery and Samuel Lee Smithers is scheduled for execution on 14 October for the murders of two women in 1996. Pittman’s final appeal was rejected on Tuesday by the US supreme court.
Two more Florida executions are scheduled for this fall. Victor Tony Jones is scheduled to die on 30 September for the 1990 killings of two people during a robbery. Samuel Lee Smithers is scheduled for execution on 14 October for the murders of two women in 1996.
Pittman was convicted and sentenced to death in 1991 on three counts of first-degree murder, according to court records. Jurors also found him guilty of arson and grand theft.Pittman was convicted and sentenced to death in 1991 on three counts of first-degree murder, according to court records. Jurors also found him guilty of arson and grand theft.
Pittman and his wife, Marie, were going through a contentious divorce in May 1990, when the killings occurred, and investigators say he had threatened to harm her family several times.Pittman and his wife, Marie, were going through a contentious divorce in May 1990, when the killings occurred, and investigators say he had threatened to harm her family several times.
Trial testimony showed Pittman cut a phone line at the Mulberry, Florida, home of his wife’s parents, Clarence Knowles, 60, and his wife, 50-year-old Barbara Knowles. Pittman stabbed the couple to death as well as their other daughter, 21-year-old Bonnie Knowles. Pittman then set their house on fire and stole Bonnie Knowles’s car, which he also set ablaze. The family was found dead on 15 May of that year.Trial testimony showed Pittman cut a phone line at the Mulberry, Florida, home of his wife’s parents, Clarence Knowles, 60, and his wife, 50-year-old Barbara Knowles. Pittman stabbed the couple to death as well as their other daughter, 21-year-old Bonnie Knowles. Pittman then set their house on fire and stole Bonnie Knowles’s car, which he also set ablaze. The family was found dead on 15 May of that year.
A witness during his 1991 trial identified Pittman as the person running away from the burning car. A jailhouse informant also testified that Pittman had admitted to the killings. Jurors recommended the death penalty on a 9-3 vote.A witness during his 1991 trial identified Pittman as the person running away from the burning car. A jailhouse informant also testified that Pittman had admitted to the killings. Jurors recommended the death penalty on a 9-3 vote.
Pittman’s most recent appeals focused on recent evidence indicating he suffers from intellectual disabilities, including an IQ in the low 70s, that was apparent at the time of the killings. His lawyers say his execution would violate the constitution’s protection against putting to death a person with severe mental problems.Pittman’s most recent appeals focused on recent evidence indicating he suffers from intellectual disabilities, including an IQ in the low 70s, that was apparent at the time of the killings. His lawyers say his execution would violate the constitution’s protection against putting to death a person with severe mental problems.
Lawyers for the state disagreed, contending it was now too late for Pittman to claim mental impairment from years earlier. The Florida supreme court, reversing a previous decision, ruled in 2020 that such claims cannot apply retroactively.Lawyers for the state disagreed, contending it was now too late for Pittman to claim mental impairment from years earlier. The Florida supreme court, reversing a previous decision, ruled in 2020 that such claims cannot apply retroactively.
“Pittman’s underlying intellectual disability claim is meritless. He was not intellectually disabled when he murdered the three victims in 1990 or when he went to trial in 1991,” the state attorneys told the US supreme court.“Pittman’s underlying intellectual disability claim is meritless. He was not intellectually disabled when he murdered the three victims in 1990 or when he went to trial in 1991,” the state attorneys told the US supreme court.
Before Pittman, 30 people have been executed in the US in 2025, with Florida leading the way behind the flurry of death warrants signed by DeSantis. The last execution in Florida was the 28 August lethal injection of 59-year-old Curtis Windom, convicted of the 1992 murders of his girlfriend, her mother and another man.Before Pittman, 30 people have been executed in the US in 2025, with Florida leading the way behind the flurry of death warrants signed by DeSantis. The last execution in Florida was the 28 August lethal injection of 59-year-old Curtis Windom, convicted of the 1992 murders of his girlfriend, her mother and another man.
Florida executions are carried out via a three-drug injection: a sedative, a paralytic and a drug that stops the heart, according to the state department of corrections.Florida executions are carried out via a three-drug injection: a sedative, a paralytic and a drug that stops the heart, according to the state department of corrections.