Authorities say a man has been charged with causing a car crash that killed an on-duty Tucson police officer two months ago. Tucson police announced Wednesday that 20-year-old Nicholas William Skitzki is facing a misdemeanor charge of death by a moving violation. He’s also been charged with two civil traffic infractions for failure to yield while turning left at an intersection and failure to yield to an authorized emergency vehicle. Police said Skitzki was cited and released April 24. He’s scheduled to be arraigned May 7 in Tucson City Court. Police say 31-year-old Officer Adam Buckner was fatally injured on March 31 when his patrol car collided with another vehicle at an intersection near the University of Arizona campus.