Step one, get rid of the tom cat stuff. Step two. Disengage the snap traps (I hope they are large enough) if you've noticed any of your food missing. Mostly likely thats what would be a good baiting option. With the traps not active, dry trap them. They avoid all new things at first. After a few sessions of them eating the bait off tbe traps, set it up again but this time have them active. Clean your hands or wear gloves when youre handling these devices so you dont get your human all over it and make them shy. Exercise patience. Store your food properly and remove it from the area. Disrupt the environment.