BLACKSBURG, Va. (AP) -- Is there a connection, or is it just a coincidence?

Two of the students killed in yesterday's shooting rampage at Virginia Tech had gone to the same Virginia high school as the alleged gunman, 23-year-old Cho Seung-Hui.

School officials say Reema Samaha and Erin Peterson graduated from Westfield High in 2006 -- three years after Cho. But authorities haven't said whether Cho knew the two young women and singled them out.

Meanwhile, a chilling portrait of Cho as a misfit and sullen loner is emerging. One of his teachers was so disturbed by his creative writing in English class that he was referred to the school's counseling service.