The gunman who walked up to a police car and shot a Virginia Tech officer to death fled to nearby university greenhouses, where he changed clothes. Despite his attempt to throw off a police manhunt, a patrolling sheriff's deputy spotted him and the gunman killed himself, the Associated Press is reporting.
It's likely the shooter was the same man who stole a rental car at gunpoint earlier Thursday in Radford, about 15 miles from Blacksburg, Geller said.

