AYESHA RASCOE, HOST:
An 18-year-old white man has been charged in a mass shooting that happened yesterday in Buffalo, N.Y. Officials say he was motivated by racism. Authorities say Payton Gendron shot 13 people, killing 10. The attack happened at a Topps Friendly Market in a predominantly Black area. NPR's Odette Yousef covers domestic extremism and joins us now. Odette, what do we know right now about Gendron?
ODETTE YOUSEF, BYLINE: Well, Ayesha, from his arraignment yesterday, we learned that Gendron is from Conklin, N.Y., which is about 200 miles away from Buffalo. He's pleaded not guilty to first-degree murder charges. He livestreamed this attack on the video platform Twitch, which is popular with video gamers. The company has removed that channel. And authorities are investigating whether he authored a 180-page online document that lays out ideology and planning behind the attack.
