A Bridgehampton teen pleaded not guilty Saturday in the execution-style killing of another teen on Christmas morning.

Authorities say Brandon Davis, 19, and two other co-defendants allegedly demanded cash and drugs and then opened fire inside a business called WhiteStar MTR on Cedarhurst Avenue in Medford back in December.

Taleik Bristel, 19, was killed by a bullet wound to the back of his head. Three others were shot and injured in the incident, but have since recovered.

Prosecutors say the two other men have already been arrested and indicted.

In court today, Davis' father told News 12 Long Island that his son is "being singled out as the murderer." His attorney says that Davis didn't do it and doesn't know anything about it.

Davis was remanded without bail. He faces 25 years to life in prison if convicted.