UPDATED at 10:55 a.m. Tuesday with name of man who was killed.

ST. LOUIS • For the second time since Friday, police say an intruder has been killed in a St. Louis home.

The property owner shot the alleged burglar to death just before 1 a.m. Monday at a home in the 5600 block of Maple Avenue.

Police say Sylvester Williams, 47, was fatally shot in the shoulder as he was burglarizing the home on Maple, in the city's West End neighborhood. Williams lived in the 3000 block of Arlington Avenue, about two miles away from the home he burglarized.

Williams was taken to a hospital, where he died.

The property owner, who is 66, apparently was not living at the home. He told police that he had been burglarized over the weekend and returned to the home after midnight Sunday to check on the residence.

That's when he walked in and caught the man inside the home, police say. The home on Maple in southwest of Page and Union boulevards.

The property owner told police that he ordered the intruder to not move, but the intruder started coming toward him. "In fear for his safety, the victim fired a shot at the suspect, striking him in the shoulder," according to a St. Louis Police Department summary of the shooting.

Police have not arrested the property owner. Katie O'Sullivan, a police department spokeswoman, said Monday morning that police think the shooting appears justified.

About 72 hours earlier, a similar fatal shooting happened in St. Louis' Fox Park neighborhood. Police already determined that shooting was justified, O'Sullivan said Monday.

In that case, a housesitter was at a home being rehabbed in the 2800 block of Magnolia Avenue when he heard someone breaking in the back door at about 12:30 a.m. Friday.

Police say the housesitter shot and killed a suspected burglar, Rico Kemp. Kemp, a convicted burglar, lived in the 2300 block of Collett Drive in Moline Acres.

The house sitter, a 48-year-old man, was not identified by police. He told detectives he feared for his life so he fired one shot, hitting Kemp in the chest.

Missouri is one of several states with the "castle doctrine," a self-defense law that allows people who encounter an intruder to use deadly force to protect themselves in their home or vehicle or on their property.