TIMELINE: Mass Shootings In Maryland

Maryland has had a number of mass shootings in the last two years.

Maryland has endured several deadly mass shootings over the past 13 months, including at the Capital Gazette in Annapolis, a Rite Aid distribution center in Aberdeen, and a granite business in Edgewood. The number of high-profile incidents also includes a school shooting in St. Mary's County. For some, the violence has changed the perception that "it can't happen here."

WJZ Investigator Mike Hellgren looks into how one Maryland group of doctors is trying to help teach people first aid so they can help is there's another deadly shooting.

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