As horrible as the above story is, it gets worse.
In 2009, a Virginia Tech student named Morgan Harrington was on the University of Virginia campus, attending a concert at the John Paul Jones Arena. Afterwards, she went missing. Her body was found about 5 miles from where Hannah Graham's remains were discovered five years later. Police reportedly have evidence tying Matthew to Harrington's murder, as well as to a sexual assault which took place in 2005 in the city of Fairfax, VA. Matthew has been indicted in that case.