How did UFC champion evan tanner die?

On August 27th, 2008, he said in his blog that he would cross the desert and wrote:

It seems that some MMA websites have reported this story, posting that I may die in the desert, or it may be my biggest rival so far, and so on. Come on, guys. In southern California, it is really common to go to cross-country entertainment areas in the desert about an hour away from Los Angeles and San Diego. So my plan is to go to the desert, camp, ride a motorcycle and shoot. Sounds interesting to me. A lot of people do that. This is not the version of Survival in the Wilderness. I won't walk into the desert wearing a pair of shorts and a hunting knife to try to live on land. I'm ready. I'm going to have some fun.

General idea:

"A website reported that I was going to the desert, saying that I might die in the desert, or that crossing the desert was my strongest enemy. Come on, guys, it's common in southern California. Many people are doing it. I want to ride a motorcycle across the desert, go camping, and smash and rob. It seems that many people are laughing at me. This is not' survival in the wilderness', nor am I going to the desert with a knife in my shorts. I am fully capable of having some fun. "

On September 3rd, he plans to ride a motorcycle across the brawley Desert in California. His agent said that he got a call from him that afternoon, saying that the motorcycle was out of gas. Since then, all his friends have lost touch with him.

On September 8, the Marine Corps helicopter found his body in the desert where the temperature reached 45 degrees Celsius. The cause of death is probably that the desert can't survive.