Investigators work on Wilkins Avenue in Squirrel Hill near the Tree of Life synagogue on Oct. 28. (Photo by Ryan Loew/PublicSource)

Two Pittsburgh-area mass shooters attended the same high school. Experts say it’s a coincidence, but other commonalities aren’t.

Both Robert Bowers, who killed 11 people at the Tree of Life synagogue on Oct. 27, and George Sodini, who killed three women and himself at the Collier Township LA Fitness in 2009, attended Baldwin High School. People who study mass shooters say their shared school is a likely coincidence — the men were 10 years apart — but there are other more meaningful markers they share.