NEW BRUNSWICK, N.J. (AP) ? A truck driver accused of crashing into a limo van carrying comedian Tracy Morgan, injuring him and killing one of his comic friends, pleaded not guilty Monday to aggravated manslaughter and other charges. Kevin Roper was driving a Wal-Mart truck when the crash occurred on the New Jersey Turnpike in June 2014. Aggravated manslaughter carries a 10-to-30-year prison term on conviction, while a death-by-auto charge carries a five-to-10-year prison sentence.