Shooter's Note: "You caused me to do this"

The Virginia Tech senior who killed 32 students and teachers yesterday left a vitriolic note in his dorm room, blaming other students for his shooting spree. "You caused me to do this," the note said, according to ABC News. It also attacked "rich kids," "debauchery," and "deceitful charlatans," the Chicago Tribune reports.

New stories are surfacing about Cho's troubled past, including suggestions that he had been medicated in the past for depression, says the Tribune. And several outlets are now reporting that Cho was referred to counseling last year by one of the school's English teachers after he submitted a violent one-act play about an abusive stepfather.