Whiskers And Murder

There are harmless street people being killed and left on the clean floors all over the city in strange places. The places are expensive private clubs of spas, mostly serving women. There are no traces or fingerprints. The only thing in common is that a stray cat is found at each location. But just as the city's best pair of detectives get involved, things get stranger. A very important executive commits suicide by shooting himself in the head-twice, and a cat is found waiting alone with the body.
Finally a reporter who's covering a bombing and the veterinarian lady who's having the cats isolated for the police are both kidnapped. Maybe it will take a touch of magic to get to the end of this puzzle.