Tyson Davis

Deadly force

An off-duty Aurora police officer shot and killed a man who the officer said attacked him with a knife after they got into an argument. Police said Officer Joseph Sacro was returning to his Arapahoe County home after his shift. When he arrived at his house about 2 a.m., he encountered several people on the street, police said. Sacro and one of the men, Tyson Davis, 24, began arguing. Police said Davis produced a knife, and Sacro shot and killed him. Sacro had been drinking but police said the alcohol was not a factor.