An unidentified man grieves at a memorial of 32 granite blocks ...

Wed Apr 16, 10:02 PM ET

An unidentified man grieves at a memorial of 32 granite blocks representing each of the people killed by Cho Seung-Hui at Virginia Tech April 15, 2008 in Blacksburg, Virginia. Thousands of mourners wearing the university's colors of maroon and orange Wednesday marked one year since 32 students and professors were brutally shot dead in the Virginia Tech massacre.

(AFP/GETTY IMAGES/File/Mario Tama)