Authorities seek 57-year-old Leslie Matthew Bost in connection to the quadruple shooting that left an 82-year-old woman dead and three others injured on Aug. 24. 

Police say it happened near 22nd and Clarke just before 9:30 p.m.

According to a criminal complaint, responding officers located the victim, Shirley Mallory, at the front of the residence with a gunshot wound to the torso. She was later pronounced deceased. A second victim was located on the porch with gunshot wounds to both feet, a third victim was located inside with gunshot wounds to the back, and a fourth victim -- who had been shot at, but not struck -- was found hiding inside a closet in the home. The last victim was later located by police at an area hospital after running to a friend's house to seek help. Police say he suffered a gunshot wound to the back of his calf.

Security camera footage across the street reportedly captured the incident. The complaint says prior to the shooting, the voices of the victims can be heard talking, as though hanging out with each other. Then, a front porch light next door turns on next door, and an individual can be seen walking onto the porch and firing a gun toward those talking. The suspect then allegedly walks down the steps and over to the neighbors' house, firing the entire time. Later, the security footage shows the upstairs unit of the suspect's home is set on fire.

Bost faces a first degree reckless homicide charge and four counts first degree recklessly endangering safety. A warrant has been issued for his arrest.

Anyone with information is asked to contact Milwaukee police at (414) 935-7360 or Crime Stoppers at (414) 224-Tips or P3 TIPS App to remain anonymous.