However Edgar de Leon Rodas, 32, will serve only 50 years, that being the maximum prison time under Guatemalan law.
He was given consecutive 50-year terms for each of the killings, plus eight years for each of his two teenage daughters he wounded by machete in the August 2014 attack in his parents' home in Guatemala City.
In the weeks after the crime, as police were investigating, De Leon received $13,100 for his father's death from a life insurance policy.