Two dead in Virginia Tech University shooting

(Reuters) - A gunman ambushed and killed a campus police officer and was later reported to have been found dead on Thursday at Virginia Tech University, the site of one of the worst shooting rampages in U.S. history. Authorities declared the campus safe and lifted a lockdown after a nearly four-hour manhunt, seeming to lend credence to television news reports that a body found in a Virginia Tech parking lot was that of the shooter. Police at a televised news conference declined to say whether they suspected a murder-suicide and offered no motive for the crime, citing an ongoing investigation. ...