An Oregon man killed two strangers more than 20 years apart and he may be responsible for other deaths, authorities said. \n\nOn March 10, a grand jury indicted Christopher Lovrien, 53, on murder charges in connection with the deaths of Mark Dribin and Kenneth Griffin, according to a statement from the Multnomah County District Attorney's Office obtained by FrontPageDetectives.Dribin was last seen alive on July 1, 1999, a Portland Police Bureau-provided timeline showed. \n\nInvestigators were able to collect an unknown suspect’s DNA from the missing man’s home and vehicle, but the case went cold in August 2000.In March 2019, the Portland Police Bureau’s Cold Case Homicide Detail reopened the Dribin case and submitted the DNA evidence for a forensic genealogy investigation. \n\nSix months later, Lovrien was identified as a potential suspect. Portland police detectives interviewed Lovrien but did not place him under arrest at the time. \n\nOn Feb. 2, 2020, one day after he was last seen alive, Griffin, the second murder victim, was reported missing. \n\nOn April 16 of the same year, portland police detectives secured a search warrant for a sample of Lovrien’s DNA and took him into custody.Investigators found Griffin’s dismembered remains in a shed on Lovrien’s property, the timeline showed. \n\n“Law enforcement believes both killings to be stranger-related as there is no known connection between Lovrien, Dribin or Griffin,” the D.A.’s statement noted.Lovrien faces charges of two counts of second-degree murder, one count of first-degree abuse of a corpse and six counts of possession of a firearm by a felon.Investigators said they also now have reason to believe Lovrien may have other victims “based on evidence found” at the suspect’s residence, according to the district attorney’s statement. \n\nPBB cold case detectives would like to speak with anyone who has information related to missing persons who could have come into contact with Lovrien while he was living in southeast Portland under an Interstate 205 bridge between summer 2019 and May 2020.