Updated

Relatives of Virginia Tech victims are asking the state to reopen its investigation of the 2007 mass shootings at the school.

A group including parents of many of the 32 people killed by student gunman Seung-Hui Cho issued a statement Tuesday calling on Gov. Tim Kaine to reopen a state panel's review.

The group also includes people hurt in the shooting.

The statement follows disclosure last week that the former director of the university's counseling center found missing mental health records for Cho at his home.

Cho committed suicide after killing students and faculty members in a dormitory and classroom building on April 16, 2007 — the worst mass shootings in modern U.S. history.

A memo from Kaine's chief legal counsel to victims' family members says Cho's records and those of several other Virginia Tech students were found July 18 in the home of Dr. Robert H. Miller.

The memo said the records were removed from the Cook Counseling Center on the Virginia Tech campus more than a year before the shootings.

Miller wouldn't comment last week.

Kaine said a Virginia State Police criminal investigation into how the records disappeared from the center where Cho was ordered to undergo counseling is under way.

Removing records from the center is illegal, he said.