disorder. in hindsight, barton s personality fit clinical patterns of a man on the edge. the person that i started to work with and the person that he ended up were two different people. he was not the same person at all. secretary leigh ann burke saw mark barton s behavior change over time. she started working with him in 1984 in texarkana, texas, where he was employed as a chemist for tlc manufacturing, a company that made cleaners and solvents. he was always kidding around and laughing and making jokes in the beginning. like i said, he was like a 6-year-old in the body of a 35-year-old man. i mean, he was just a big dennis the menace at first. but then a new mark barton began to emerge. he would have temper tantrums when he couldn t get formulas to blend right or he would be trying to make a new product and he would try and try and he would have he would throw things and, you know, have these little temper tantrums. she noticed barton isolated
championship, and at least 13 people were injured, two critically. more news later but now back to the nbc documentary. due to mature and graphic subject matter, viewer discretion is advised. at the center of any criminal investigation is a dark heart and the iron hand of justice. july 29th, 1999, every police department in the state gunman walks into two buildings and opens fire. when it was all over, mark barton had killed nine of his co-workers and had critically wounded 13 others. investigators were about to discover that the deadly rampage began two days earlier at his home. that s where they found the bodies of his wife and two children. and now, the manhunt begins. we are actively looking at
who has managed to evade the killer once, is still hiding in a dark utility closet, terrorized, wondering if she will be mark barton s next victim. i heard running and then i heard one shot fire out, and then an incredible, overwhelming stench of gunpowder, which told me that barton had just passed by. eyewitness descriptions of the suspect, a man wearing a red shirt and khaki pants, are broadcast on television and radio. from their office tower facing piedmont road, bookkeeper laurie woodard and her co-workers watch as bedlam unfolds in front of them. people are glued to the windows, this whole side of the building, people are glued to the windows. while keeping a close eye on the police action as they cordon
carefully approach the van. once i opened the door, you know, your heart is racing, of course. to see him not moving, there was a lot of blood. a few moments ago at lake acworth and cobb county at a bp station, mr. barton was pulled over and committed suicide. according to detective renee swanson of the henry county police department, barton had previously discussed suicide with his wife leigh ann. while she was at work he had called her and was threatening that he was going to commit suicide. well, she heard a gunshot over the phone and the heart was just stricken. took off home and when she gets home he s there fine and, you know, leigh ann was, what is going on? why did you do that? what was that gunshot? he said, oh, i killed the cat instead. of course, mark barton eventually did kill himself, his wife and his children. although murdering one s family is not characteristic of workplace killers, barton s troubled state of mind fits the profile perfectly. the common pathw
smashed into my computer screen. with barton s attention focused in the main room, brent doonan, wounded and bleeding on the office floor, uses the opportunity to make his escape. i knew if i lay there, that i was going to die. i just charged him and pushed him pushed him away as i went, and luckily he didn t cap me as i was going across. maybe he was just stunned. but i made it past him and out the conference room and down to the end of the hallway. barton keeps firing relentlessly as people run and duck for cover. nell jones starts running for her life, fearing that at any moment she will take a bullet to the back. she s about to dive into the