A homeowner in Patterson shot and killed a drunk intruder who was trying to break into their home and was fighting with her husband, authorities said.The shooting happened on Saturday around 10:20 p.m. on Ashwood Lane, the Stanislaus County Sheriff's Office said. Officers arrived to the home and found 22-year-old Angelo Santana dead near the entryway of the house. Between video surveillance and witnesses, detectives found that Santana was heavily intoxicated and was trying to force his way into the home. Homeowner 45-year-old Yang Luan was attempting to restrain Santana from entering the home when a "significant fight" began near the front door, authorities said. Yuhui Zheng, 50, went upstairs to get a revolver that she had just bought one day prior and in "self-defense of her husband, fired all rounds," authorities said. The homeowners are cooperating with detectives.No arrests have been made, and "preliminary findings are this was an example of strictly self-defense," the sheriff's office said. Authorities say Santana had a history of showing up unannounced to people's homes to try and find friends. Anyone with additional information to share is asked to call Det. Rodriguez at 209-652-0518.