Does the book so far support this position? Do you agree with Krakauer? Why or why not?

I don't think Chris planned his demise. I think Krakauer makes it clear that Chris was a flawed person. He was naive about living in the Alaskan wilderness and overly romanticized isolation. Chris, however, was not on a death wish. One can interpret this an accident because of Chris's ignorance of geography and wilderness living.