My conclusion is that Gabby has/had serious psychological/emotional issues including intense anxiety, perhaps psychosis, etc.. This is OBVIOUS in the video.
Her boyfriend possibly murdered her or somehow abandoned her in the middle of nowhere. This would only intensify her fragile state and lead her to suicide, possibly.
She COULD still be out there alive but I doubt she has the wherewithal to survive.
Not hopeful.
“Gabby has/had serious psychological/emotional issues including intense anxiety, perhaps psychosis, etc..”
OR, she was having intense anxiety and emotional issues because she was terrified, especially after she saw, knew or was involved in the shooting of the two women. IMO, this guy was way too calm, cool and controlled, under the circumstances and way too willing to let her take sole responsibility.