Payton Gendron, of Broome County, New York, 18, has been charged with first-degree murder in a mass shooting that killed 10 and injured three others at a convenience store in Buffalo, New York on Saturday.
He was charged Saturday night and pleaded not guilty.
“I understand my charges,” were the only words he said in court while sitting next to a publicly appointed attorney.
The teenager appeared in court wearing a medical-style white coat and face mask.
Following the charges, a judge has remanded Mr Gendron without bail and he will appear in court for a felony hearing in five days.
New York Gov. Kathy Hochul attacked the 18-year-old during a speech on Saturday, condemning him for an “evil” act of “white supremacy” and “terrorism”.
“Yes, I’m here to comfort the families in a community that is going through so much pain right now,” she said. “But mark my words, we will aggressively pursue anyone who subscribes to the ideals professed by other white supremacists.”
She also criticized social media companies for allowing white supremacy and other hateful ideologies to spread online.
“You created the platform that made it possible to spit that hate out,” she said.
Police said Mr Gendron streamed the shooting and live video service Twitch confirmed the suspected gunman used its platform to broadcast his video before it was removed.
https://www.independent.co.uk/news/world/americas/crime/payton-gendron-buffalo-mass-shooting-b2079272.html Payton Gendron: Buffalo mass shooting suspect appears in court charged with over 10 murders