Some 300 rounds were fired, of which five hit Preston, causing superficial wounds. He exited the helicopter and started running toward the White House, but was tackled to the ground by Secret Service agents. Handcuffed, Preston was taken to the Walter Reed Army Medical Center for treatment, where he arrived smiling and "laughing like hell".[1] At the time of the incident, Richard Nixon was traveling in Florida, and First Lady Pat Nixon was in Indianapolis, visiting their sick daughter, Julie.[8]