Florida has executed death row inmate Thomas Lee Gudinas for the "monstrous" rape and murder of a former homecoming queen who was enjoying a night out on the town when she was attacked while walking to her car.

Gudinas, 51, was executed by lethal injection on Tuesday, June 24, for the murder of 27-year-old Michelle McGrath in Orlando on May 24, 1994. He became the 24th inmate executed in the U.S. this year and the seventh in Florida, more than any other state.

Gudinas was pronounced dead at 6:13 p.m.

His attorneys had been arguing that he was too mentally ill to be legally executed under the U.S. Constitution, pointing to Gudinas' writings, including a letter he wrote to President Donald Trump, as examples of his condition.

McGrath's family dismissed the arguments as more legal wrangling following 31 years of appeals and red tape.