This case reminds me of Erin Valente. I think Erika was in some sort of altered state that could have been compounded by heat, dehydration and exhaustion, and she was unraveling.
I haven't seen anything about any water or food that she might have packed for her trip, nothing evident in the car but she could have left it at her campsite.
Her close friends say the FB video rant that Erika posted (that was re-posted by Gray Hughes) was very out of character for Erika.
Her SIL says that when Erika talked to her mom on 6/15 she was talking fast and possibly driving.
No apparent record of any communication between Erika and "James and Christian" from the campsite, on Erika's phone per her best friend. Were they just a couple guys who were camping that encountered her and assisted her or placated her when she asked them to watch her campsite?
A friend of Ericka's moved to 29 Palms in April, did Erika make any attempt to contact her while she was in the area?
Her windshield and rear window could have been broken by someone she encountered in or around the park in an act of road rage or spite or just some random delinquent. It does not appear anything was taken, coins left in console.
Was she frightened and/or not thinking clearly and felt compelled to escape despite or because of the damage to her car?
Have there been any reports of anyone claiming to have encountered her in the park? (I haven't seen any.)
Why did she drive to Shelton Road where her car was found? Was she confused or lost? Did she make a wrong turn when she left the park? Was she looking for her friend's house? How much time elapsed between when she was captured on video passing a school at 2:50 and her car being discovered blocking Shelton road? Did she damage her car trying to get turned around somewhere else and subsequently got stuck where her car was discovered on Shelton Rd?
Did she leave on foot once her car was disabled to seek shelter? Did she succumb to the harsh elements and just hasn't been found?
A terrible tragedy for her family, I hope they can get some answers and resolution soon.
MOO