Prowler

Noun

 * 1) One who roves about for prey; one who prowls.

Adjectives for Prowler
vicious; thieving.

Thesaurus
body snatcher, booster, chicken thief, con man, crook, den of thieves, embezzler, filcher, ganef, ghoul, grafter, grave robber, jewel thief, land pirate, land shark, land-grabber, larcener, larcenist, lifter, peculator, petty thief, pilferer, poacher, purloiner, robber, scrounger, shoplifter, sneak thief, stealer, swindler, thief, white-collar thief