I got my first real lesson in police accountability in 2019 on Halloween. My wife, Sara Pekow, and our daughter had watched an NYPD officer drive the wrong way up a Brooklyn street and hit a Black teenager. The police had been chasing him as a suspect in the theft of a cellphone. When the boy rolled off the car and ran away, the officers turned their attention to other nearby Black boys who seemed to be simply trick-or-treating. The police lined them against the wall of our neighborhood movie theater, cuffed them and took them away.