A documentary will air on the Investigation Discovery channel next week featuring a Lodi couple killed by a mass murderer nearly three decades ago.
Robert and Dagmar Linton, parents of Richard, a member of the Lodi Police Department partners unit, were kidnapped from their trailer at a Washington state campground in 1986 and never seen again. Four years later, police in Alaska arrested Charles Thurman Sinclair in connection with eight murders in five states, including the Linton couple.
Two weeks after his arrest, Sinclair took a massive dose of heart medication and died in his cell. The bodies of the Lodi couple were never found.
The case will be featured on “Ice Cold Killers,” at 5 and 8 p.m. on Tuesday.