ANCHORAGE, Alaska — The winner of the $500,000 lottery drawing came forward Saturday to collect his prize, and the man who will pocket a half-million dollars from a raffle designed to benefit a sex abuse victims charity is a three-time sex offender. Alec Ahsoak of Anchorage was convicted of sexual abuse of a minor twice in 1993 and once in 2000, according to the Alaska Department of Public Safety Sex Offender/Child Kidnapper Central Registry.