© UnknownVirginia Tech
"We don't know if the suspect fled or the extent of the injuries to the suspect or to the officer," NBC News' Pete Williams told MSNBC TV.
"This was a traffic stop on campus," Williams said. "It was not someone walking around firing shots."
A second victim was at a campus parking lot, CBS television station WDBJ reported.
A Virginia Tech alert described the suspected shooter as a white male wearing gray sweat pants, a gray hat with a neon green brim and a maroon hoodie, and carrying a backpack.
A Virginia Tech alert posted on the school's website said the suspect was last seen walking toward McComas Hall, which is the main gym on campus, about two blocks from Lane Stadium.
In the deadliest mass shooting in U.S. history, 33 people, including the mentally ill gunman, were killed on the Virginia Tech campus on April 16, 2007. The massacre in a classroom building began at 9:40 a.m. when Seung-Hui Cho chained the doors and killed dozens before committing suicide.
he was mentally ill I guess.