Police have identified the victim of a fatal stabbing outside a Brooklyn grocery store, and have arrested his suspected killer.

David Martinez, 36, was stabbed twice in the back and once in the chest outside City Fresh Market, a 24-hour grocery store on Sixth Ave. near 50th St. in Sunset Park, around 4:55 a.m. Thursday, cops said.

A 36-year-old man was also slashed in the face during the attack.

Police investigate after a 35-year-old man was fatally stabbed and a second man was slashed on 6th Ave. near 50th St. in Sunset Park, Brooklyn early Thursday, May 28, 2026. The suspect, who was also injured in the clash, left a blood trail down 6th Ave. (Theodore Parisienne / New York Daily News)
Police investigate after a 35-year-old man was fatally stabbed and a second man was slashed on 6th Ave. near 50th St. in Sunset Park, Brooklyn early Thursday, May 28, 2026. The suspect, who was also injured in the clash, left a blood trail down 6th Ave. (Theodore Parisienne / New York Daily News)

Medics rushed both victims to NYU Langone Hospital-Brooklyn, where Martinez died. The victim wounded in the face is expected to survive.

Jose Tucubal Morales, 25, was arrested Friday and charged with murder, attempted murder and criminal possession of a weapon, according to police.

Martinez lived about three blocks from the grocery store where the stabbing occurred, and just around the corner from his alleged killer, cops said.