Cracking a 56-Year Cold Case: the Dna Trail That Exposed Fugitive William Leslie Arnold

Discover the essential facts on Cracking a 56-Year Cold Case: the Dna Trail That Exposed Fugitive William Leslie Arnold in this special report.

Inside the walls of the state penitentiary, Arnold presented every appearance of a rehabilitated model inmate. He worked in the prison hospital, maintained quiet discipline, and rarely drew disciplinary reprimands. Behind the scenes, he spent months engineering an audacious escape alongside fellow inmate James Harding.

On the foggy night of July 14, 1967, the duo implemented their plan. Using tools Arnold had quietly secured through his assigned work details, they cut through the wire mesh covering a window in the prison music building, scaled an interior security partition, and climbed the 20-foot exterior stone wall using a makeshift rope ladder. They vanished before guards discovered their empty bunks during the morning roll call.

Local police, state patrol units, and the US Marshals Service immediately launched a coordinated sweep. Harding was captured less than a year later, but Arnold had evaporated. Decades slipped by without an actionable lead. The Nebraska Department of Correctional Services and cold case investigators maintained an open warrant, but with zero paper trail, the investigation grew colder each year.