An Army spokesman says an escaped inmate who eluded capture for 37 years is back behind bars at the military's maximum-security prison at Fort Leavenworth, Kan.

Spokesman George Marcec confirmed Thursday that convicted killer James Robert Jones returned to military custody this week from Florida and is being housed at the U.S. Disciplinary Barracks. It is unclear if Jones has been charged with additional crimes related to his escape.

The 59-year-old Jones was arrested by U.S. Marshals in Florida after authorities used facial recognition technology to identify Jones, who was living under the name Bruce Walter Keith.

He was convicted of murder and assault in the 1974 killing of a fellow soldier at Fort Dix in New Jersey. Jones was serving a 23-year sentence when he escaped.