U.S.

Associated Press
This image provided by the Baltimore County Police Dept. shows a wanted poster of Ismaaiyl Brinsley. The gunman who fatally ambushed two New York City police officers in their squad car had a long criminal record, a hatred for police and the government and an apparent history of mental instability that included an attempt to hang himself a year ago, authorities said Sunday, Dec. 21, 2014. (AP Photo/Baltimore County Police Dept.)

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