Naked City S03 E02 Dead on the Field of Honor

"There are eight million stories in the Naked City."

A 35 year old man, raised by his cultured Southern grandmother to be a "man of honor", has not had fortune shine upon him. He becomes unbalanced and begins to use a dueling pistol to right wrongs in his "field of honor" - Central Park. The bizarre shootings are thoroughly looked into by the NYPD as the man's mental state worsens.