Source : Webster's Revised Unabridged Dictionary (1913)

Offender \Of*fend"er\, n.
   One who offends; one who violates any law, divine or human; a
   wrongdoer.

         I and my son Solomon shall be counted offenders. --1
                                                  Kings i. 21.

Source : WordNet®

offender
     n : a person who transgresses moral or civil law [syn: {wrongdoer}]