Activists and journalists march to pay tribute to murdered journalist Pavel Sheremet, wearing T-shirts that read “Who killed Pavel?”, in Kiev, Ukraine, Thursday, July 20, 2017. Sheremet, 44, was killed in Kiev in a car explosion last year. Despite promises from President Petro Poroshenko to solve the case, no progress is visible a year after the killing and Ukrainian journalists say the inaction leaves them feeling increasingly imperiled. (Photo by Efrem Lukatsky/AP Photo)
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