Oklahoma prepared to execute a man on Thursday for the brutal slayings of two hotel workers during a robbery in 2001.

Donald Anthony Grant, 46, is scheduled to receive a lethal injection at the Oklahoma State Penitentiary in McAlester. He will be the first person executed in the U.S. this year, and the third in Oklahoma since the state resumed lethal injections in October following a near seven-year hiatus.

During November’s hearing, Grant expressed “deep, sincere remorse” and apologized for the killings, but the state’s Pardon and Parole Board voted 4-1 against recommending clemency.