It didn't take long for Chinese netizens to get on the case of the brutal Virginia Tech murder. Almost immediately, forum members human flesh searched the killer, Zhu Haiyang, and sussed out his university scores, his QQ number and - most importantly - his blog. While nobody can know for sure why he decapitated 22-year-old Yang Xin in the middle of a public cafe, there are now a few more guesses as to what caused an otherwise affable and studious PhD student to snap.

Week Around the Ists