STARKE, Fla. (AP) — A Florida man convicted of fatally stabbing of his cousin’s girlfriend and the couple’s 4-year-old daughter is set to be executed Thursday evening.

Richard Knight, 47, was scheduled to receive a three-drug injection starting at 6 p.m. at Florida State Prison near Starke. Knight was sentenced to death after being convicted of two counts of first-degree murder in 2006 for the deaths of Odessia Stephens and her child, Hanessia Mullings.