In fact, Crowley taught a racial profiling course at the Lowell Police Academy, said Deborah Friedl, deputy superintendent of the police department.

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Deputy Superintendent of Police Ziaul Haque was shot dead on Saturday evening in Pratapgarh district.

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Muhammad Iftikhar, deputy superintendent of Peshawar police, told CNN that Monday's attack targeted a truck terminal on the same road where militants destroyed scores of containers, trailers and vehicles on Sunday.

CNN: Attacks prompt U.S. look at Afghan supply route