Robert Louis : Killing of two NYPD officers could not have come at a worse time for the city . De Blasio 's call for a temporary halt to political warfare did n't stop his adversaries from going on the attack . New York is already embroiled in a bitter public battle over police - community relations , he writes . Critics of mayor link Saturday killings to his support of protests over the shootings . Louis says that ` ` ' '' but says mayor should have avoided violent acts .
Robert Louis : Killing of two NYPD officers could not have come at a worse time for the city . New York is already embroiled in a bitter public battle over police - community relations , he writes . Critics of mayor link Saturday killings to his support of protests over the shootings . Louis says that ` ` ' '' but says mayor should have avoided violent acts .