Man convicted of 1970 mass murder in Sunburg, Minnesota, was strangled to death in 1988 by his roommate in their St. Paul apartment

A family of five was shot to death in their rural Sunburg home in 1970. The confessed murderer, Neil M. Pladson, was sentenced to 25 years in prison. In 1987, Pladson was released to a halfway house. A year later, he was found strangled to death in his apartment. His killer, Douglas Tank, was his roommate and he told authorities that Pladson had threatened to kill the man’s family while brandishing a knife. Tank said he knocked the knife out of Pladson’s hand and strangled him.
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