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Vermont State Police Major Ed Ledo, center, speaks during a news conference Wednesday, March 28, 2012 in St. Johnsbury, Vt. Allen and Patricia Prue are being charged in connection with the killing of Vermont prep school teacher Melissa Jenkins, who police say was strangled. Thirty-year-old Allen Prue of Waterford and his 33-year-old wife Patricia Prue are facing 2nd degree murder charges in connection with the killing of Jenkins. (AP Photo/Toby Talbot)

Vermont State Police Major Ed Ledo, center, speaks during a news conference Wednesday, March 28, 2012 in St. Johnsbury, Vt. Allen and Patricia Prue are being charged in connection with the killing of Vermont prep school teacher Melissa Jenkins, who police say was strangled. Thirty-year-old Allen Prue of Waterford and his 33-year-old wife Patricia Prue are facing 2nd degree murder charges in connection with the killing of Jenkins. (AP Photo/Toby Talbot)

Teacher's death stuns Vermont community

Allen and Patricia Prue pleaded not guilty on Mar. 28 to second-degree murder in the death of Melissa Jenkins, a 33-year-old science teacher at the prestigious St. Johnsbury Academy, and unauthorized burial or removal of a dead body. More charges are possible, police said.