The last person to do a deadly stunt like this in Texas killed himself in front of a large audience by shooting himself in the chest wearing one of his ballistic vests. The round struck high and angled upward after hitting the vest. This was his routine trying to sell his equipment.
Fading memory but I think he used a .357 Magnum and if I am wrong someone on BS will correct me.
The only guy I am aware of who used to shoot himself after donning one of his company's ballistic vest was Richard Davis of Second Chance Body Armor. The company ran into trouble after producing vests made of "zylon" and was beseiged with lawsuits. The original vest of kevlar was a industry standard and saved countless police officer's lives. Second Chance was sold to another armor company and I think Safariland now owns the name "Second Chance".
Richard to my knowledge was never injured seriously while demonstrating his vests. The company originated in the Great Lakes area, btw.
I do not remember the name but I saw the video of the person wearing the vest kill himself and I am pretty certain it happened in Texas.
He was demonstrating how well his companies vest worked. Maybe 6 years ago? It was filmed in front of a large audience.