The attack took place around 2 a.m. inside a bodega along Amsterdam Avenue on the Upper West Side.
The victim was a customer, not an employee. Police say the attacker walked up to him, stabbed him repeatedly in the chest, and took his cash.
He is currently in critical condition.
ALSO READ | 'Positivity is Hard:' Gabby Petito's father speaks about daughter's disappearance
* Get Eyewitness News Delivered
* More Manhattan news
* Send us a news tip
* Download the abc7NY app for breaking news alerts
* Follow us on YouTube
Submit a News Tip