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2 convicted murderers practiced night before prison breakout

FILE - This combination of file photos released by the New York State Police shows David Sweat, left, and Richard Matt. Matt, who staged a brazen escape from an upstate maximum-security prison with Sweat and had been hunted for three weeks was shot and killed Friday, June 26, 2015. Sweat was shot and captured on Sunday, June 28. (New York State Police via AP, File)
FILE - This combination of file photos released by the New York State Police shows David Sweat, left, and Richard Matt. Matt, who staged a brazen escape from an upstate maximum-security prison with Sweat and had been hunted for three weeks was shot and killed Friday, June 26, 2015. Sweat was shot and captured on Sunday, June 28. (New York State Police via AP, File) FILE - This combination of file photos released by the New York State Police shows David Sweat, left, and Richard Matt. Matt, who staged a brazen escape from an upstate maximum-security prison with Sweat and had been hunted for three weeks was shot and killed Friday, June 26, 2015. Sweat was shot and captured on Sunday, June 28. (New York State Police via AP, File)

DANNEMORA, N.Y. (AP) – A convicted murderer who broke out of prison and went on the run for more than three weeks before being shot and captured has told police that he and a fellow escapee conducted a practice run the night before their daring breakout, a district attorney said.

Clinton County District Attorney Andrew Wylie said David Sweat, 35, told police from his Albany Medical Center hospital bed that he masterminded the June 6 breakout from Clinton Correctional Facility and began working on it in January.

The escape by Sweat and 49-year-old Richard Matt launched a massive 23-day manhunt amid the rugged northern New York terrain involving more than 1,100 law enforcement officers.

Matt was shot and killed by a border patrol officer June 26 in Malone. Sweat was wounded Sunday by a state trooper near the Canadian border. He was listed in fair condition Wednesday.

Wylie said Sweat claimed he used only a hacksaw blade – not power tools, as officials had reported – to cut holes in the steel walls of his and Richard Matt’s cells as well as a 24-inch steam pipe they crawled through.