NYPD Commissioner Edward Caban resigns amid federal nightclub probe  NBC New YorkPolice Commissioner Resigns as Investigations Batter Adams’s Circle  The New York TimesNYPD Commissioner Edward Caban resigns amid FBI probes in Adams administration  ABC7 New YorkSwirling federal investigations test New York City mayor’s ability to govern  The Associated PressNYC police commissioner resigns amid nightclub probe  NBC News