Holy cow!! is there some pent up hostility again??? and with all these fish around..... relax, the guy shot a couple of pests... and yes they do kill cats. They also tear up garbage, crap all over everything, carry disease, and get into everything. They will come inside the house through pet doors or open windows....try getting one back out! The hiss and growl and have little fear of you. They are one step up from rats, except a little cuter. I leave them alone unless they get too bold, then its lights out... Same goes for coyotes.