I go back to the beginning in this case:
http://www.desertsun.com/videos/news/nation/california/2014/07/20/12906723/
No 1 since she lived on base the Military IS involved which worries me...snafu..
No 1 Why would she "go to "JTNF" to "take Photos" for her mother, who was coming to visit? This statement by her Husband does not make any sense. IF her mother was coming to visit then she could just take her thru Joshua Tree. I've been there many times...photos of Joshua Tree? I'm sorry I dont believe her husbands excuse as to "why she left the home" that morning. I don't believe him I'm not buying it sorry. Photos dont do it justice, she would have def wanted to take her mom THRU JT. IMO.
When stumped in any investigation; go back to the beginning of your case. Golden Rule No 2. Golden Rule No1 is rule out closest to the missing. No one has been ruled out, he is No 1 Suspect to me at this point.