The stabbings happened at 5:30 p.m. Wednesday at the Ameer Deli and Grill on Broadway and West 212th Street in Inwood.
A 24-year-old man was stabbed in the neck and died at New York-Presbyterian Allen Hospital.
A 20-year-old was slashed was in the neck, he was rushed to Harlem Hospital.
A 21-year-old was stabbed in the hand and back and went to New York-Presbyterian Allen Hospital.
The two injured men are expected to survive.
Investigators could be seen going in and out of the deli overnight, placing evidence markers on the ground.
Eyewitness New was told a knife and possibly a scalpel were used in the stabbings.
Surveillance video showed the aftermath of this attack.
It shows someone in a white shirt run out of the deli and walk in front of the store with his shirt covered in blood.
Then, someone runs over to help him and eventually brings the victim next to a parked Honda CRV.
That SUV was towed away around 4 a.m. Thursday.
A suspect was taken into custody, but no charges have been filed at this point.
People in the neighborhood say they hear about violence far too often.
"I walk through here every day with my kids, coming home from work, and now I'm terrified because it could have been anybody, you know?" a resident said.
It's still unclear what led to the stabbings. At this point, investigators don't believe the person of interest and the victims know each other.
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