It was mostly forgotten in time and overshadowed by 9/11. Thirty-five years later, the case remains unsolved.
At 6:30 pm, as LaGuardia bustled with travelers, the bomb went off, collapsing the floor and ceiling and hurling shrapnel from the lockers into the air.
Eleven people were killed, mostly by shrapnel wounds, and 79 injured.
So who could have been responsible? Investigators initially suspected the Puerto Rican separatist group FALN, which took credit for the lethal bombing at Fraunces Tavern earlier that year.
The PLO and JDL were also on the short list. But nothing led police back to these groups.
Then in 1976, after a hijacking from LaGuardia by a Croatian nationalist, investigators thought they finally had a suspect.
But after the hijacker was arrested in Paris, he didn’t take responsibility. Law enforcement officials consider him the strongest possible suspect, but to this day, he maintains his innocence.