BLACKSBURG, Va. (AP) -- He left a note.

According to the Chicago Tribune, the gunman who opened fire at Virginia Tech University yesterday had left a note in his dorm room that included a rambling list of grievances.

The note from Cho Seung-Hui reportedly denounced "rich kids," "debauchery" and "deceitful charlatans" on campus.

According to ABC, law enforcement sources say the note was several pages long, and that it explained the gunman's actions.

It reportedly says, "You caused me to do this."