 Nelson was convicted of second-degree murder and assault. It's the first case to get a conviction after voters removed a requirement to prove an officer acted with malice, a standard no other state had. Jeff Podula, ABC News, Seattle. Oklahoma gave a lethal injection to Richard Rogem, condemned for abducting, raping, and murdering his seven-year-old former stepdaughter in 1984 after she reported he'd abused her.