(Portland, OR)  --  A convicted sex offender accused of kidnapping, sexually assaulting and murdering an 89-year-old woman is officially facing charges.  Timothy Mackley was indicted yesterday on 23 charges.  Police arrested him last week after finding a body inside his car during a traffic stop.  That body turned out to be that of Marcine Herinck, whose disappearance for more than a week sparked a major search.  Investigators believe Mackley followed Herinck home from a thrift store where she volunteered and kidnapped her.  Police say Mackley intentionally tortured and maimed Herinck before killing her.