On July 27, 1999, Mark Orrin Barton woke up early in the morning at his home in Stockbridge, Georgia, and bludgeoned his second wife, Leigh Ann Vandiver, to death as she slept. The next night, he also beat his children from his first marriage, Matthew and Mychelle, to death.

Mark Orrin Barton was a spree killer and family annihilator -turned- workplace shooter who on July 29, 1999, murdered his family of three before going on a shooting spree that killed nine more people and injured thirteen others before ending with his suicide.

Aug 9, 1999 · At a time of increased public anxiety over such shooting sprees, he is a severed Gorgon’s head, freezing onlookers with horrific astonishment. Who was Mark Orrin Barton? Why did he go berserk?

Jul 31, 1999 · Mark O. Barton left the computer-generated note in the living room of his family's apartment in suburban Stockbridge, describing how he killed his wife and two children by hitting them in the...

Jul 30, 1999 · Mark Barton, 44, killed himself after being pulled over in his van by cops at a BP gas station early last night, Atlanta Mayor Bill Campbell announced.

Jul 30, 1999 · Mark Barton was a computer junkie who delved into the high-stakes world of Internet stock trading – and a quiet suburbanite with a shady past, whom police had suspected of murdering his...

Jul 31, 1999 · On this particular hot Thursday, Dean Delawalla was one of nine day traders and trading house employees who lost their lives when Mark O. Barton went on his pistol-firing rampage in two trading...

In July 1999, daytrader Mark Barton killed his wife and children before going on a shooting rampage first at his home and later at the Buckhead office complex where he worked, killing a total of ...

In July of 1999, a day trader named Mark Barton went on a killing spree in Atlanta’s financial district. He murdered 9 people that day, wounding 13 more. Two days before this massacre, he murdered his second wife and two children. But he was also suspected of murdering his first wife and her mother six years earlier.

May 12, 2023 · The shooter was 44-year-old trader Mark O. Barton. By the end of that fateful day, Barton murdered 12 people and injured 13 more before taking his own life. Prior to the attacks at the trading firms, Barton had already committed an unthinkable act.