A man was shot and killed Friday night after an argument at an apartment in Aurora’s Saddle Rock neighborhood, police said. The dispute began around 9:40 p.m. when one man started pounding on a woman’s door, according to Aurora police. The argument moved inside an apartment at 22000 East Ottawa Drive, where officers later found the man dead. Police said the man who had been banging on the door was the person who was shot. He knew the woman who lived there, but police said he and the suspect did not know each other. Officers arrested a suspect. Police have not released the men’s identities or additional details about the circumstances of the shooting. The investigation remains underway.