One deadly ambush. Two Pennsylvania State Troopers shot, one killed. Forty-eight days on the run.

In September 2014, Eric Frein killed Cpl. Bryon Dickson, wounded another trooper, and vanished into the rugged terrain of eastern Pennsylvania, sparking a 48-day manhunt.

Join True Crime Tonight and the U.S. Marshals Museum for an evening with former U.S. Marshals Service Director Stacia Hylton as she presents: "Chasing Shadows: Inside the Hunt for Notorious Fugitives."

Hear firsthand accounts from the high-stakes manhunts for Eric Frein, Juan “El Chapo” Guzmán, and James “Whitey” Bulger in this compelling behind-the-scenes presentation.