From the New York Times:
Richard W. Matt, one of the convicted murderers who staged an elaborate escape from New York’s largest prison nearly three weeks ago, was shot and killed on Friday by a federal agent, two people with knowledge of the situation said.
The authorities encountered Mr. Matt after the inmate, who was on foot, tried to carjack a camper vehicle near Malone, N.Y., a third person with knowledge of the situation said. The driver sped away and called 911, and law enforcement officers responded.
There was a report of a second episode of gunfire as officers pursued David Sweat, the other inmate. The officers did not see Mr. Sweat, but they heard him running. His whereabouts was unclear.