Richard “Bo” Dietl was a New York City Police Officer and Detective from June 1969 until he retired in 1985.  Bo was one of the most highly decorated detectives in the history of the police department, with several thousand arrests to his credit.  There were two particular cases that represent his career highlights.  The first was what former New York City Mayor Edward I. Koch labeled “...the most vicious crime in New York City history” (1981) which involved a nun who was raped and tortured in an East Harlem convent as 27 crosses were carved i…