Wolf

A wolf is a charismatic, highly intelligent criminal. They are slick, coy, cunning, tricky, crafty, scheming, elusive individuals. A wolf is someone who is predatory and prey's upon weak, naive or unsuspecting individuals. A wolf is sharp and very difficult to catch. A wolf is an elite predator who's victims never see coming.

It takes a wolf to catch a wolf." Denzel Washington -'Training Day'