Scott Faul (Federal Bureau of Prisons)

FARGO, N.D. (AP) — A man serving a life sentence for the murders of two U.S. marshals who were killed in a shootout near a small North Dakota town nearly four decades ago wants to be released from prison after testing positive for COVID-19.

67-year-old Scott Faul has been in federal custody since 1983. Faul, along with Gordon Kahl and Kahl’s son, Yorie, were involved in a shootout with law enforcement officers in rural Stutsman County near Medina.

The shooting resulted in the deaths of U.S. Marshal Kenneth Muir and Deputy Marshal Robert Cheshire. The incident gained national attention in part because Gordon Kahl was a leader of a group of tax protesters.