John Lennon's killer will continue watching the wheels go round from behind bars after being denied parole Tuesday for a sixth time. Mark David Chapman met with a three-member Parole Board panel at the Attica Correctional Facility via video conference. Chapman was sentenced to 20 years to life in prison after he was convicted of shooting the ex-Beatle four times outside his apartment on Dec. 8, 1980. He has served nearly 30 years of his sentence. Chapman is next eligible to try for parole in two years. He was first eligible for parole in 2000. Lennon's widow, Yoko Ono, had...