olunteer and former board member for a community group that helped homeless people. She wrote a July 15 Facebook post decrying recent shootings in Erie, Pennsylvania.

Erie, Pennsylvania shooting

The backstory:

Erie Police Chief Rick Lorah said on Oct. 11 that seven of the victims and the shooter were related. An eighth victim was a friend of one of the victims.

On Oct. 9, police responded to an automated gunshot detection alert at a home on Perry Street. Lorah said several 911 calls came in after police received the alert. When officers arrived at the home minutes later, they found two women, 37 and 51, in the yard who had been shot dead.

On the first-floor, police found the bodies of multiple victims, a 1-year-old girl and a 5-year-old boy, a 19-year-old man, a 21-year-old man, a 24-year-old woman and a 44-year-old woman.

Matthew Stone Sr., the shooter, was found on the second floor of the home. Authorities said he appeared to have a self-inflicted gunshot wound and found a gun on his person.

Lorah said they believe all the victims had already been killed, and the gunman was dead before the first officers arrived on the scene.

The Associated Press reported that video and audio evidence recovered by authorities included muffled gunshot sounds coming from inside the house just before two  distressed  women arrived and started banging on the door, Lorah said. Stone then came out and shot them as they ran toward him, before returning inside.

Lora Roberts and Twila Tanner, who was the only non-relative, were killed outside the home, Lorah said.

The police chief hasn't said what Stone's possible motives were, but he implied that his mental health might have been a factor.

Lorah also told the AP that investigators would speak to relatives and inspect the cellphones of the women who were killed outside the home.

The Source: Information for this story was provided by The Associated Press, which cites comments from Erie County coroner Lyell Cook and Erie Police Chief Rick, and previous FOX Local reporting. This story was reported from Washington, D.C.