A man in Florida found guilty of murdering a college freshman and assaulting the student’s sister while they were camping in a national forest three decades ago is set to be executed on Thursday. Loran Cole will face the death penalty if the U.S. Supreme Court does not intervene. He is convicted of the 1994 killing and also serving two life sentences for rape.

Court documents show that Cole and his accomplice, William Paul, became acquainted with the two college students in the Ocala National Forest. After conversing by a fire, the men offered to show the siblings a pond but instead attacked and robbed them. The brother, an 18-year-old Florida State University student, was brutally beaten, had his throat slashed, and abandoned in the forest. His 21-year-old sister, a senior at Eckerd College, was taken back to the campsite where Cole tied her up and sexually assaulted her.

The young woman was left tied to a tree overnight and assaulted once more the following day. She eventually freed herself and sought help from a passing driver. Authorities discovered her brother deceased face down on the ground. Governor Ron DeSantis signed Cole’s death warrant last month.

Cole’s legal team raised various arguments in his defense, citing his time at a state-run reform school where he and other boys endured physical abuse. They also highlighted Cole’s brain damage, mental illness, and Parkinson’s disease as reasons why he should not be executed. Despite these claims, the state Supreme Court dismissed the defense’s appeals.

Both Paul and Cole were convicted of first-degree murder, with Paul receiving a life sentence. This execution will mark Florida’s first since the lethal injection of Michael Zack last October for the 1996 murder of Ravonne Smith.