Luigi Mangione will stand trial in Manhattan federal court beginning January 5 with jury selection followed by opening statements January 25.
The small but mighty group of people fought for a man's life on top of the World Trade Center subway elevator entrance in New York.
The day after a teenager died after being thrown from a horse carriage in Central Park, the union representing drivers says it has stopped all rides for now.
Luigi Mangione's legal team on Thursday withdrew its intention to invoke a psychiatric defense in the state trial over the killing of UnitedHealthcare CEO Brian Thompson.
A carriage horse recently died while carrying passengers in Central Park
Attorneys for Luigi Mangione plan to present an "affirmative psychiatric defense" at his state trial, alleging he was suffering an "extreme emotional disturbance."