I'm so sorry about your roo.
Here, raccoons are the only wildlife that can legally be taken at night with a firearm. Of course, other laws apply as well, and since many of them live in the highly populated metro cities, options are limited. I had a pet raccoon for a long time.
My cats were (and are) indoor-only after, years ago, 1 was taken by a coyote near my front door's petdoor (which locked them in in late day). But there's many wild & free roaming cats around here, which concern me mostly around the little ones, yet I can't help but think that the free roaming cats are probably often the prey, instead of the other way around.
4 close neighbors (myself included) have recently had something heavy scrambling around on our roofs. It sounds much too heavy for a coon but can't be ruled out. 2 days ago 1 of the completey wild cats ran right inside a neighbors cracked door, terrified, so something was after it. Harbor Freight carries cheap cage traps so that's what we'll probably do to get to the bottom of it.