By Sandra Rose  | 

Photo may have been deleted

Erie County PD

Authorities say a mass shooting that left 10 people dead at a Buffalo, NY supermarket was a racially motivated hate crime.

Police confirm 10 people are dead and the 18-year-old gunman is in custody. 4 of the victims were store employees.

The shooting rampage at the Tops supermarket at 1275 Jefferson Avenue, was live-streamed on Twitch.com. The video shows him shoot a woman in the head soon after exiting his car in the parking lot, around 2:30 p.m. Saturday.

Police say the gunman shot three people outside the supermarket. He was dressed in camouflage and wore body armor. He carried a semi-automatic rifle.

The N-word is written on the gun barrel in a screenshot from the video. He opened fire inside the store gunning down shoppers as they tried to flee.

Officials say a retired Buffalo police officer who worked as a security guard shot the gunman, but his body armor stopped the bullet. The suspect then shot and killed the security guard.

When he walked out of the store to surrender to police after the carnage, he initially put one of the rifles to his chin, then dropped it.

Video shows officers taking the gunman into custody while one person lay on the ground nearby.

A 106-page manifesto allegedly written by the suspect and posted online raged against white people becoming the minority in America.

If there's one thing I want you to get from these writings, it's that White birth rates must change," he wrote. "Everyday the White population becomes fewer in number."

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