The suspect wanted for fatally stabbing a man on a Bronx street in March was nabbed at JFK Airport after a flight from Mexico, police said Wednesday — revealing for the first time that the alleged killer was, in fact, the victim’s girlfriend.

Dulce Hernandez, 28, was charged Tuesday with murder, manslaughter, assault and criminal possession of a weapon and ordered held without bail when she was arraigned on an indictment.

She’s accused of stabbing of her boyfriend, Ramon Vasquez, 35, the night of March 28 on Webster Ave. near Parkside Place in Norwood.

Police said the fatal confrontation happened next to a weed truck parked across from a gas station.

A man was fatally stabbed on Webster Ave. near Parkside Place in the Bronx on Saturday, March 28, 2026. (Theodore Parisienne / New York Daily News)Ramon Vasquez was fatally stabbed on Webster Ave. near Parkside Place in the Bronx on Saturday, March 28, 2026. (Theodore Parisienne / New York Daily News)

Vasquez, stabbed in the chest, was rushed by medics to St. Barnabas Hospital but could not be saved.

The suspect fled the scene, but police said they recovered the knife she used to kill Vasquez.

A case against her was recently presented to a grand jury, then police learned she was due to fly back to New York City on Tuesday.

A man was fatally stabbed on Webster Ave. near Parkside Place in the Bronx on Saturday, March 28, 2026. (Theodore Parisienne / New York Daily News)Ramon Vasquez was fatally stabbed on Webster Ave. near Parkside Place in the Bronx on Saturday, March 28, 2026. (Theodore Parisienne / New York Daily News)

It wasn’t clear what sparked the killing.

The next night after the stabbing, an employee at the gas station, who did not witness the incident, told the Daily News that five men appeared to be living in the weed truck — and had been doing so for about 6 months — and most mornings would offer to wash cars being serviced at nearby auto shops. The employee said he had not seen the men since the fatal incident.

The truck, which displayed Georgia license plates, appeared unoccupied the next evening after the deadly stabbing.

Hernandez, who was charged in November in an unrelated misdemeanor assault case, lives in Norwood three miles north of where he was fatally assaulted. Vasquez lived at a different address in Norwood.