She's one of three cases I'm not sure about.
Something about the woman with the pig necklace makes me think "domestic violence" rather than LISK.
I'll be very surprised if NJ didn't commit suicide. It's possible someone lured her and murdered her, but nothing about her background or circumstances fits.
SG ran into an area where it was going to be hard for even an alert, oriented woman to get out safely. So I think her actual death was a tragic accident. But was somebody really trying to kill her? Did she run into the swamp trying to escape? I don't know.
Way back in my misspent youth, I had a friend go nonlinear like that during a bad drug experience. He was sure we were trying to kill him. Fortunately for him, he fell and broke his leg and couldn't run into danger--though he continued to scream that the ambulance attendants were taking him to a secret lab where they were going to torture and kill him and leave his drained husk in an alley. It was an exciting evening. But that experience makes the account of the evening sound entirely plausible to me.