President Bush is expected to attend a convocation Tuesday at Virginia Tech, as friends and families gather at the site of the deadliest campus violence in U.S. history.
Denise Aspell, friend of Ryan Clark, one of the students shot in dorm
Mark Widdowson, professor of civil and environmental engineering, VA Tech, and friend of shooting victim Professor G.V. Loganathan
Jeff Brady, NPR national reporter
Lucinda Roy, professor and co-director of the creative writing program at VA Tech, and author of op-ed in the New York Times, "A Black Day in the Blue Ridge"