Floyd Medlock was the 33rd person executed by Oklahoma since 1976, for the brutal slaying of a 7 year old girl in the town of Yukon in 1990. He was born on October 9, 1970 and his own life started on all the wrong notes. According to relatives, Medlock was shut up in a closet by his mother and often shut up in the basement by a babysitter. His stepfather beat him with a garden hose and he tried suicide twice, once when he was 10 and tried to blow his own head off with a shotgun but the weapon misfired. When he was 15 he tried to cut his wrists and was put in psychiatric care. He claimed to have a split personality and that his alter ego he called "Charlie" told him to do bad things.

Medlock had a rap sheet including two arrests for indecent exposure, one arrest for marijuana possession, and an arson and burglary conviction. In late 1987, shortly after his 17th birthday and while living in Nevada, Medlock dressed in a ninja Halloween costume and stalked a neighbor's 10 year old daughter. He broke into her house with the intent of raping her but nobody was home, so instead he poured gasoline on the floor and set the place on fire. In 1989, Medlock was living with his sister and nieces in Fresno, California and claimed Charlie was ordering him to harm his nieces. He finally moved out for fear that he would act on those thoughts and went back to Oklahoma, where, tragically, he couldn't restrain Charlie.