1) Abuser 2) Aggressor 3) Assailant 4) Assaulter 5) Attacker 6) Backslider 7) Badman 8) Beguiler 9) Cheater 10) Criminal 11) Crook 12) Culprit 13) Deceiver 14) Defector 15) Evildoer 16) Felon 17) Ganef 18) Ganof 19) Gonif 20) Goniff 21) Malefactor 22) Malfeasant 23) Maltreater 24) Miscreant 25) Molester 1) Bad person 2) Offender 3) One in timeout 
• (n.) One who injures another, or who does wrong. • (n.) One who commits a tort or trespass; a trespasser; a tort feasor.
Wrong'do`er noun 1. One who injures another, or who does wrong. 2. (Law) One who commits a tort or trespass; a trespasser; a tort feasor. Ayliffe. 
[n] - a person who transgresses moral or civil law
offender noun a person who transgresses moral or civil law