Crime Solvers Central
CSC
218 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.
Case Description
Any updates on this case? Let us know!
On July 20, 1977, Johnathan “John” Quinn, a 34-year-old man, vanished into an evening that would end in a warning written in gunfire. Accounts tied to later reporting and court scrutiny describe him as tangled in New York’s stolen-car world and suddenly exposed to something far more dangerous: he had testified before a grand jury, the kind of step that could turn a hustler into a liability overnight.

What followed has been repeatedly attributed to the orbit of Roy DeMeo’s Gambino ...Read More
Links to Additional Sources (2)
See any mistakes? Let us know!
Victim Details

Johnathan John Quinn

Male

Brooklyn

NY

1977-07-20

34

Johnathan

John Quinn

01/11/2026