I got some pictures this time.
Question: is this a black widow, y/n?
EDIT: more pictures showing markings on abdomen. It looks like some white spots, I don't see any red hourglass :-\
And again- not killing it YET because last time I tried it got away. I have two cats who currently can't get to the closet. I really don't want to scare the spider to them when I'm unsure if it's a black widow, since a black widow bite can kill a cat. I'm not keeping it as a pet, but I'm trying to know what I'm dealing with first.
I didn't want to get my hand close to try to get a picture next to a coin or anything for size :-\