This is the chilling moment two gangbangers drag innocent 15-year-old Lesandro Guzman-Feliz out of a Bronx bodega — seconds before the teen was stabbed to death in a tragic case of mistaken identity.

Surveillance footage obtained by The Post shows the pair of suspects forcibly sliding the terrified teen — who dreamed of becoming a cop — along the floor of Zesarina Grocery on Wednesday night as onlookers watched.

The video shows packages of snacks knocked over in a brief scuffle before the two men — one wearing a green du-rag and a black t-shirt with the American flag on the front, the other a dark baseball cap with white lettering and a plain white t-shirt — drag Guzman-Feliz toward the deli’s door.

Once outside, a group of men — believed to be members of the Trinitarios street gang — stab Guzman-Feliz several times before taking off, a horrific incident also caught on tape, cops said.

The mortally wounded teen limped to St. Barnabas Hospital, but he could not be saved.

A “top leader” of the gang later reached out to Guzman-Feliz’s family to apologize for the slaying, saying, “It wasn’t supposed to be him,” according to Derek Grullon, boyfriend of the victim’s sister.

Investigators are probing the murder as a case of mistaken identity, with the killers believing Guzman-Feliz was actually a strikingly similar-looking young man who made a sex tape with one of the thug’s relatives.