Joyce Mitchell, left appears with her lawyer Stephen Johnston before Judge Buck Rogers in Plattsburgh City Court on June 15, 2015 in Plattsburgh, New York.
G.N. Miller—Getty Images
July 29, 2015 6:04 AM EDT

Prison seamstress Joyce Mitchell, who pleaded guilty Tuesday to helping two inmates escape, told investigators that she performed sexual acts on one of the men and sent X-rated selfies to the other and knew the duo planned to kill her husband, police documents show.

Mitchell, 51, told investigators that inmates Richard Matt and David Sweat nicknamed her husband, Lyle, “the glitch” and gave her small round pills to drug him with, according to statements obtained by NBC News that give dramatic new details of the breakout plot…

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