Cinematographer Paul Hyon Kim, 36, had become such a radicalized leftist he called progressive streamer and commentator Hasan Piker a "sellout," according to a former co-worker.

Paul Hyon Kim, 36, faces charges in connection with the March 18 attack in both state and federal court in Nevada, authorities announced Thursday, a day after his arrest.

Paul Hyon Kim, 36, faces charges in connection with the March 18 attack in both state and federal court in Nevada, authorities announced Thursday, a day after his arrest.

Paul Hyon Kim, 36, faces charges in connection with the March 18 attack in both state and federal court in Nevada, authorities announced Thursday, a day after his arrest.