Multiple people were shot and killed Thursday morning at a Rite Aid distribution center in Aberdeen, the latest mass shooting in Maryland.Here is a timeline of recent gun violence with multiple casualties in the region:July 21, 2018 &#8212; Nine people were shot, one of them fatally, in a single night in Baltimore. Four people were shot in one incident near the city&#8217;s southeastern border.June 28, 2018 &#8212; Five employees of Capital-Gazette newspapers died when a gunman stormed their Annapolis office. The Laurel man police say is responsible harassed the newspapers&#8217; employees for years over an article about criminal stalking charges against him.March 20, 2018 &#8212; Great Mills High School student Jaelynn Willey died and classmate Desmond Barnes was injured when police say another teen shot them in the hallway of their St. Mary&#8217;s County school.Nov. 6, 2017 &#8212; One man was killed and two others were wounded in a targeted daytime attack on an auto repair shop in Northwest Baltimore.Oct. 18, 2017 &#8212; Police say Radee Prince shot five people at Advanced Granite Solutions in Edgewood. Three people died. Prince was convicted of of attempted manslaughter, reckless endangerment and other charges for a shooting in Delaware that occurred the same day, but has not yet faced trial in Maryland for charges of murder, attempted first-degree murder and gun charges.Aug. 21, 2017 &#8212; Nine people were shot in six incidents in Baltimore, including a quadruple shooting amid a drug dispute in Northwest Baltimore.Feb. 11, 2016 &#8212; Two Harford County sheriff&#8217;s deputies were shot to death at an Abingdon business park. The shooter was also killed in the confrontation at a Panera Bread restaurant.