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Joseph and Mary Ann Olivieri, parents of fallen
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Joseph and Mary Ann Olivieri, parents of fallen Nassau Police Officer Joseph Olivieri, leave the Nassau County Courthouse where James Ryan, 26, of Oakdale, faces upgraded charges in the accident that resulted in Olivieri's death. (April 10, 2013)(Credit: Howard Schnapp)

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Nassau Officer Joseph Olivieri fatally struck on LIE

Joseph Olivieri, a Nassau County highway patrol officer was struck and killed in the line of duty on Oct. 18, 2012, on the Long Island Expressway, according to Nassau County and police sources. Olivieri, who has been on the force since 1998, was fatally struck at about 5 a.m. Thursday in North Hills.