One individual, David DeRosia, collapsed in the mosh pit during the Metallica performance. Concert medical staff initially tried to treat his symptoms, which were seizures, and what doctors suspected to be a drug overdose. DeRosia was transported to the Air Force base medical center and was then airlifted to University Hospital in Syracuse. A little more than an hour after he had collapsed, DeRosia's body temperature was . The following afternoon, he was in a coma and a doctor had diagnosed him with "hyperthermia, probably secondary to heat stroke." After being in a coma for another day, DeRosia died at 12:09 pm on Monday, July 26. The autopsy report ruled the death as accidental and listed the cause of death to be hyperthermia along with an enlarged heart and obesity. In 2001, DeRosia's mother filed a lawsuit in New York Supreme Court against the promoters of Woodstock 1999 and six doctors who worked at the event; the lawsuit stated that DeRosia died because concert promoters were negligent by not providing enough fresh water and inadequate medical care for 400,000 attendees.