Social media sleuths seldom get it right. So I would wait for details before attaching Katt (more than circumstantially) to this.
Murders - not premeditated ones - are often crimes of emotion and proximity. Two potential “street” cats as portrayed by the OP, one an abrasive comedian, the other a bodyguard, working in close proximity - an argument and shots ringing out (without Katt’s immediate involvement) is not too far-fetched. But again, probably best not to be doing internet sleuthing and await further details