Billey Wayne Martin in custodyUpdate:Amarillo, TX - Billey Martin turned himself in to Amarillo Police Thursday afternoon. Previous Story:Amarillo, TX - Amarillo police are asking for your help finding a man wanted for a felony warrant out of Potter County. 38-year-old Billey Wayne Martin is wanted for failing to register as a sex offender. He's five-foot eleven, 174 pounds and has green eyes and brown hair. If you have information about Martin you're asked to call Amarillo Crime Stoppers at 374-4400, or you can submit a tip on-line at amapolice.org.