Five men fatally shot were found across three residences nearby, with investigators confirming the incidents are linked.
Police chief Joe Sullivan said that amongst the deceased was the suspected shooter, but declined to elaborate on the incident further.
The victims, aged between 39 and 68, were known to one another, yet their connections remain undisclosed by the authorities as of Monday.
Officers responded to a shooting report at around 5.44 pm, and found one man dead in a residence. A subsequent investigation at a nearby residence revealed three additional victims. During a neighbourhood sweep, law enforcement spotted the fifth victim through a window at a third location.
“We have five victims who are deceased from gunshots,” Sullivan told reporters. “We believe that the investigation will determine that one of those victims was the shooter of all the other victims,” he added.