Are we talking about an ‘expert marksman’ here or some just deranged loner who went mad ? I also read somewhere that the bullet that killed himself was lodged from behind, in an excution style. I don’t know but is that how gunmen usually kill themselves ?

The other thing is that, who on earth filmed him and took the pictures of Cho ? And what about the gun receipts which were found in his bag?
I mean, how many of us would really keep the receipt of this kind, unless we hope it serves some purpose like drawing Cho to the killing.

There is a possibility that there are other people who are really behind the whole planning and excution of the killing. Cho could have been a just convenient scapegoat who went along with the plan, possibly with a promise that he would die as a ‘hero’. This kind of logic can work on sick and unstable minds and somebody, knowing Cho’s schizophrenic tendency and lonlieness, could have used it.

Think about it.