We live on the 2200 block of E. Marion. For the past few months there’s been a black cat with a red collar coming into our yard and even our house and attacking our cats. He is very aggressive. Our young cat has been attacked several times and yesterday this cat ripped open our 10 year old cats ear. The situation has become very serious. If this is your cat, can you please keep him indoors. It’s just a matter of time before one of our cats is going to get seriously injured if some solution is not found.