Candles, flowers and mementos grace a makeshift memorial at Virginia Tech in Blacksburg, Va., Thursday, April 19, 2007. Thirty-two students and faculty members were killed by a gunman at the school on Monday.
Keith Chostner, of Winston-Salem, N.C., left, and Chris Anger, of Maryland, both freshman, hold candles at a memorial to the slain students and faculty on the campus of Virginia Tech, early Friday morning, April 20, 2007, in Blacksburg, Va.
Virginia Tech alumnus Fiona Shafer, from Woodbridge, Va., who graduated in 1995, sits with her nine-month-old pit bull Jack as she mourns the shooting victims at the makeshift memorial on the drill field of Virginia Tech Thursday, April 19, 2007.
Candles, flowers and mementos grace a makeshift memorial at Virginia Tech in Blacksburg, Va., Thursday, April 19, 2007. Thirty-two students and faculty members were killed by a gunman at the school on Monday.
A memorial for Virginia Tech shooting victim, Caitlin Hammaren, is seen on the steps of Burruss Hall on the school's campus in Blacksburg, Va., Thursday, April 19, 2007.
An autographed T-shirt is part of a memorial for Virginia Tech shooting victim, Caitlin Hammaren, set-up on the steps of Burruss Hall on the school's campus in Blacksburg, Va., Thursday, April 19, 2007.
A well wisher visits a makeshift memorial at Virginia Tech in Blacksburg, Va., Thursday, April 19, 2007. Thirty-two students and faculty members were killed by a gunman at the school on Monday.
Virginia Tech President Charles Steger, left, and a state trooper walk past a memorial on the steps of Burruss Hall on the campus of Virginia Tech in Blacksburg, Va., Thursday, April 19, 2007.
A well wisher visits a makeshift memorial at Virginia Tech in Blacksburg, Va., Thursday, April 19, 2007. Thirty-two students and faculty members were killed by a gunman at the school on Monday.
Virginia Tech students Meredith Vallee, left, and Matt Mantiply, right, hug at a makeshift memorial set up on the campus of Virginia Tech for the students and faculty that lost their lives in the deadliest mass shooting in U.S. history on Wednesday, April 18, 2007 in Blacksburg, Va.
Two Westfield High School students who could not be identified due to school policy, lay flowers and cards at memorial rocks in honor of Reema Samaha and Erin Peterson on Wednesday April 18, 2007 at Westfield High School in Chantilly, Va. Both girls were former students of Westfield who were killed in the massacre at Virginia Tech. Cho Seung-Hui, 23, the gunman who killed 32 people was also a former Westfield student.
Students visit a makeshift memorial set up on the campus of Virginia Tech for the students and faculty that lost their lives in the deadliest mass shooting in U.S. history on Wednesday, April 18, 2007 in Blacksburg, Va.
A man who chose to only be identified as a professor at the school, prays on Wednesday, April 18, 2007 at the site of a makeshift memorial left on the Virginia Tech campus in Blacksburg, Va. for the students and staff who died in Monday's school shooting.
A rose and notes of condolence are seen on a makeshift memorial on the drill field of the Virginia Tech campus days after the deadly shootings in Blacksburg, Va., Wednesday, April 18, 2007. A total of 32 people were killed by Virginia Tech student Cho Seung-Hui in Monday's massacre.
Virginia Gov. Tim Kaine, left, his wife Anne Holton, second left, President Bush and first lady Laura Bush, right, spend a moment reading notes on a memorial erected on the Virginia Tech campus, Tuesday, April 17, 2007, in Blacksburg, Va., following a convocation ceremony in honor of the Virginia Tech massacre victims.