transgressor (n.)

• criminal
• crook
• culprit
• deceiver
• delinquent
• evildoer
• felon
• gangster
• lawbreaker
• malefactor
• malfeasant
• miscreant
• mobster
• offender
• outlaw
• racketeer
• sinner
• thief
• trespasser
• villain
• wrongdoer