A man was charged on Thursday with first-degree murder in the fatal shooting of Police Officer Jonathan Diller, the Queens district attorney announced.

The man, Guy Rivera, 34, was also charged with attempted murder for aiming his gun at a second police officer, Sasha Rosen, who pushed it away before Mr. Rivera could fire, according to a statement from Melinda Katz, the Queens district attorney. Ms. Katz said that Mr. Rivera faced life in prison without parole if convicted.