Billy Alverson, 39, was administered a lethal injection at the Oklahoma State Penitentiary and was pronounced dead at 6:10 p.m. CST
After the execution, Yost's widow, Angela Houser. Issued a statement saying she doesn't know whether she "will ever have true closure."
"There are no winners tonight, each of us from both sides of the family have lost," she said.
"I want to give my condole(nce)s to the Alverson family, " she said.
Billy's last words were: "First, I would like to say to the Yost family, I'm sorry, forgive me. To my own family, I'm all right. God is good. Don't you cry."
May he rest in peace.