While friends were commenting on his last ever Facebook post Friday, Trepierre Hummons called 911 -- then waited with a gun for officers to arrive, Cincinnati police said. In his bid to commit suicide by cop, he fatally shot Officer Sonny Kim, 48, a husband and father of three, police said. Then he opened fire on two more officers, said Police Chief Jeffery Blackwell. When Hummons, 21, called the emergency operator, he didn't let on what he was planning. Instead he pretended to be a concerned witness who saw a man acting erratically with a gun, according to 911 and...