Just saw the news on Japanese TV, he had student visa as they say. Since he is 21 years old, I guess, he must have got there very recently, yet went for executing such heinous act which must have took considerable time for plan and prepare. Means what the hell he intended to study there? Was there any intention of study at all infact?
Yes, what a waste of a young life, but grave concern is the mind, the logic behind that not only justify such act but actually work for materialize! These holy crusade knights [minds] are not born and raised in 'Mars', rather just around us BD people too, which we should be well aware of.