The investigation panel had sought Cho's medical records for several weeks, but due to privacy laws, Virginia Tech was prohibited from releasing them without permission from Cho's family, even after his death. The panel had considered using subpoenas to obtain his records. On June 12, 2007, Cho's family released his medical records to the panel, although the panel said that the records were not enough. The panel obtained additional information by court order. Cho had been prescribed paroxetine years before the shooting but had been taken off it after one year. The toxicology test from the official autopsy later showed that neither psychiatric nor any kind of illegal drugs were in his system during the time of the shooting.
