Death row inmate leaves cryptic final words before being executed 36 years after killing a mom

A Florida man convicted of the brutal killing of a young mother more than three decades ago was executed earlier this month, bringing an end to one of the state’s longest-running capital cases.

Mark Allen Geralds, 58, was pronounced dead at 6.15pm on Tuesday (9 December) at Florida State Prison after receiving a lethal injection. His execution marked the 18th carried out in Florida this year, the highest annual total under Governor Ron DeSantis, and came almost 37 years after the crime that placed him on death row.

Geralds was sentenced for the 1989 murder of 33-year-old Tressa Pettibone, a mother of two who was killed in her Panama City Beach home. Her eight-year-old son discovered her body when he returned from school.

The crime and the case

Geralds was 22 years old when he murdered Pettibone on 1 February 1989. Court records show she was beaten, stabbed, tied up and gagged during an ordeal that prosecutors said lasted around 20 minutes.

Her son found her lying on the kitchen floor, having bled to death in her own home.

According to court evidence cited by The Guardian and USA Today, Geralds had encountered Pettibone roughly a week earlier at a shopping mall. During that meeting, prosecutors said he learned that her husband was away on business. Investigators later said Geralds struck up a conversation with Pettibone’s son in a video arcade, asking questions about when his father would return and the family’s daily routine.

At the time, prosecutor Jim Appleman described the killing as one of the most brutal cases he had handled.

“The cruel beating he put on Tressa Pettibone is outrageous,” Appleman said in comments reported by the Associated Press.
“She bled to death in her own home… And in her own home, she took the last gasps of breath that she could and sucked blood into her lungs.”

Police later found that Geralds had pawned jewellery stolen from the home on the day of the murder. Investigators also said plastic zip ties found in his car matched those used to bind Pettibone’s hands.

Geralds had previously worked as a carpenter on renovation work at the Pettibone home, a fact prosecutors said gave him familiarity with the property.

He was convicted in 1990 of first-degree murder, armed robbery and related charges. Although the Florida Supreme Court later vacated his original death sentence, his conviction stood, and he was re-sentenced to death in 1992.

In the weeks before his execution, Geralds informed a judge that he did not intend to pursue any further appeals formally. On the day he was put to death, he declined a last meal and chose not to meet with a spiritual adviser present. When invited to make a final statement, witnesses said he appeared to address someone by name quietly, though the words could not be clearly understood.

“I’m sorry that I missed you [inaudible],” Geralds said. “I loved you every day.”
He became still around four minutes after the lethal injection was administered.

A new chapter for the family

In a statement released following the execution, Pettibone’s family said the case had dominated their lives for nearly four decades.

“Tomorrow, when we wake up, it will be the first time in nearly 37 years that we don’t have to worry about another appeal being filed or another law changing that could potentially thwart the justice we have been fighting so hard for for so long,” they said.

“Today we crossed the finish line for her, and we close this very painful chapter in our lives.”

They described Pettibone as a “faithful wife, loving mother, daughter, sister, aunt and dedicated friend,” adding that her family “was her world and everything she did centred around them.”