On June 17, 2008, a Virginia circuit court judge approved an $11 million state settlement agreement for the families of 24 people killed in the April 2007 shootings at Virginia Tech University, giving each family $100,000 plus medical expenses. The settlement terms required the families to release their wrongful death and personal injury claims. The Virginia Tech shooter, Seung-Hui Cho, left 33 dead and 25 wounded in the deadliest shooting incident by a single gunman in US history. As a result of the tragedy, the university improved its security response and legislators pushed for gun control reform. In December 2007, Congress passed the NICS Improvement Amendments Act of 2007, which mandates improvements in state reporting to the FBI's National Instant Criminal Background Check System (NICS).