Clinton Correctional Facility officials realized two convicted murderers, Richard Matt and David Sweat, were missing from their cells on June 6, 2015.
That discovery sent them on a nearly three-week-long manhunt to locate the New York prison escapees who sawed their way out of their cells with aid from an employee, Joyce Mitchell.
The escape comes to life in a Showtime television drama series “Escape at Dannemora,” directed by Ben Stiller. To mark its premiere on Sunday, look back at a timeline of all the events concerning their escape.