What Kind of Person Tortures Animals?

We think someone (intentionally) burned Tiger with a cigar.  He has a perfectly circular wound on his flank that looks for all the world like someone punched a hole out of his flesh.  It’s deep and red and angry-looking.  The edges are hard, like they would be if he were burned.  This is the time of year when the fireworks-freaks are non-stop, and they often use cigars as handy punks for the firecrackers.  I know of a couple of neighbors who don’t like us (we keep our garbage cans out behind the garage, in clear and flagrant defiance of the Dreaded Neighborhood Association) or Tiger (because he catches the birds they draw to the feeder they keep 12 INCHES off the ground).  But really, who does this sort of thing?  (And can we burn him back?)