Twenty-three miles east of us, by the corner of Dexter and West Chicago, in Detroit’s near north side, several black Wayne County sheriff deputies were facing something much more ominous than freezing weather. They were experiencing a cop’s worst nightmare.

It was a hot summer afternoon in 1971, and I was a 22-year-old undercover narcotics officer in the Wayne County Sheriff’s Department, with a year and a half on the job. I was also a former US Army Ranger with a year in Vietnam. We were in Detroit’s east side, getting ready to make a raid.