I agree. Her sister claimed in a TV interview that nobody disliked Jessica and there was nobody in her life who could have done it. Yet there are photos of her with gang members. And an article claimed Jessica had been in a home for battered women, had previously been beaten, and that on the night of her murder she had been out in pajamas.
I suspect drugs. But that’s just a guess; I don’t know much about the case. Whoever did this to the girl was sending a message, IMO.