For some reason... I see prison in your near future
6 months, dude don't know how much time he had. A lot of k!llers don't get that much time, in fact I probably would have been making my way to Brazil where if you have a kid you won't get shipped back to America.
I know this dude had real mental problems, plus you might as well run when you k!ll someone in an apartment and there are blood splatters. Even if you use chemicals to clean the area the forensics will notice unless you're good at chemistry. You can't have the carpet replaced because you live in an apartment it's not your job. Cops will slap you with a conspiracy.
You'll have to go through a whole lot to beat a murder in the environment in which he did it in. You'll probably have to cut up a sample of the carpet and go find the same exact carpet then make it look older so it never crosses anyone's mind that the carpet is new.
But dude didn't have the mental awareness that's why he let her sit in the bathroom.