(AP) — Authorities were searching for a man believed to be the last person seen with a University of Virginia student before she disappeared on arrest warrants charging him with reckless driving. Virginia State Police spokeswoman said in an email late Sunday that State Police officers were conducing "surveillance" of the vehicle at the time but did not pursue Matthew. Graham, a sophomore from northern Virginia, met friends at a restaurant for dinner, stopped by two parties at off-campus housing units and left the second party alone, police have said. Surveillance videos showed her walking, and at some points running, past a pub and a service station and then onto the Downtown Mall, a seven-block pedestrian strip lined with shops and restaurants. Graham's parents appeared at the news conference and her father, John Graham, appealed for anyone with any information to call a police tip line.