Hi All
This is my first post here; I am enjoying reading on this site. I have done as much research into this case as I possibly could from day 1. I drove that road all the time back then and had to drive over the charred spot as well as the 2 miles of skid marks of people veering out of her way that day. It took many weeks for all the skid marks to fade, it was haunting.
I have thought about what may have set off Diane that day. I am sure it was anger, at Daniel, at her brother, at her mother... maybe a lethal combination. Whatever events happened, I am convinced she became suidical and murderous and made a concious decision to end her life and take the children with her, to punish others.
One theory relates to her anger and abandoment issues with her mother. She cut her mother out of her life 27 years ago and never mentioned her to anyone. She got married and didn't invite her mother (though pictures of her with her father exist), had children, yet her mother never met her grandchildren and she deprived her children of their grandmother. That may have been fine when the kids were very small, but they were getting a bit older, 2 and 5. What if the nieces, who were a few years older, were talking about grandma over the weekend, her kids would also be curious. They would not know Diane's issues with this, it would be innocent children speaking. She could have been confronted with an obstacle she could not surmount, how to deal with her own kids asking about her mother. What would she say? She would have to come up with some explaination. It would bring it all back to her. The nieces could have been talking about some great time they had with grandma, or that they were going to see her soon, or anything about her in apositive loving way. This inevitable situation was a ticking time bomb in Diane's life, she knew the day would come when she would have to allow her children the free will to see their grandmother; perhaps she could not face this reality.
Also, Daniel Schuler initially claimed he went to the campsite early Thursday to 'get some fishing in', as he stated publicly in his live 'press conference', which he chose to do rather than keep an arranged interview (his first) with police. However, his ezpass records showed he really showed up Friday, just a couple of hours before Diane and the kids. So where was he? He later acknowledged that he arrived Friday on Larry King. You can't have it both ways. Maybe Diane figured out he was not where he was supposed to be. With their level of communication there is a good chance she never mentioned it to him that she knew, it just fed her anger.
Then there is the conversation with her brother, where she was so out of it she called him Danny. If she thought she was talking to her husband she may have revealed something she didn't want to tell her brother. Who knows what she told him in her then-drunken state of mind... maybe she picked up the fight they were having that morning, maybe she threatened to kill herself and the kids he never wanted anyway. Whatever it was it alarmed her brother enough to take off looking for her. She knew enough to ditch the cell phone and drive north instead of south in case he tried to track the phone, which the police tapes indicate they were trying to do.
Just my thoughts.