One of the suspects charged with robbing, killing and burning the bodies of an elderly Tuscarawas County couple has been sentenced to life in prison without parole. 30-year-old Robert Clark avoided a possible death sentence by pleading guilty to aggravated murder and other charges in the deaths of 88-year-old Doyle Chumney and his 79-year-old wife, Lillian .The couple was found inside their burned-out car in Coshocton County in January. A second suspect, 21-year-old Jeffery Stewart, has been indicted.