TULSA, Okla. — Three teenagers are now charged with first-degree murder in connection to the shooting ambush that killed two other teens in east Tulsa on Saturday.

Earlier this week 18-year-old Christopher Atjun turned himself in after four teenagers were shot at an east Tulsa apartment complex on Saturday. Two of them died at the scene and the other two are recovering.

According to an affidavit, Atjun and 19-year-old Angel Ibarra fired the shots, and 16-year-old Joseph Melendez gave Atjun the gun.

Ibarra is charged with two counts of first-degree murder and two counts of shooting with intent to kill.

Melendez is charged with two counts of first-degree murder.

A judge signed warrants for both of their arrests on Wednesday.