According to a Roanoke Times article, Cho’s main spending spree started when he rented a van on March 12th.  According to CNN, he also bought the Glock 19 in Roanoke on March 12th.  What’s significant about March 12th?  It was the first day of classes after Tech’s Spring Break.

Did something happen over spring break that sent him over the edge?  Where did he go, and what did he do the week of spring break?  He didn’t stay in his dorm, because his dorm, Harper Hall, was closed during spring break.