Amateur video captures supermarket shooting aftermath

STORY: Eleven of the 13 people struck by gunfire were Black, officials said, calling it a hate crime and an act of "racially motivated violent extremism".

Authorities said the 18-year-old suspect, who was armed with an assault-style rifle and wearing body armor, drove to a Black neighborhood of Buffalo from his home in a New York county "hours away" to target the store in an attack he broadcast on the internet.

He appeared to have acted alone and when confronted by police after the shooting, he had held the gun up to his own neck before officers talked him into surrendering.