Question: Seemed that whoever the killer was, she'd let him into her home voluntarily.
The killer was someone she was familiar with.

Answer: it is not possible to tell

Question: We had a little bit of sex, mostly out of habit.
We had a little dinner and a little sex.

Answer: it is not possible to tell

Question: He wouldn't get much information here, it seemed.
It looked like he wouldn't get a lot of details here.

Answer:
yes