The feds indicted a reputed Genovese capo Monday for the 1977 murder of a gangster who, after his killer's gun jammed, snarled: "What're you gonna do now, tough guy?"
Prosecutors say Michael (Mikey Cigars) Coppola promptly drew a second pistol and gunned down John (Johnny Coca Cola) Lardiere outside a New Jersey motel.
Coppola, 62, went on the lam in 1996, after authorities asked him to submit a DNA sample to test against hairs found in a hat at the crime scene.
The FBI captured Coppola last year on the upper West Side, where he was living with his wife.
A DNA test of the forensic evidence was inconclusive; New Jersey authorities handed off the murder to case to the feds.
Coppola has pleaded guilty to the fugitive charges and is serving a 42-month sentence.