63-year-old Glenn Seymour was taking a class to obtain a permit to carry a loaded, concealed gun in public. The class was being held at the Shootin' Iron gun shop in Vanzant, Missouri. According to news reports, "Students were working on an exercise in which they pull a concealed weapon with their non-dominant hand, take the safety off, aim and shoot."
Seymour was trying to use his left hand when the gun got turned around and he unintentionally shot himself in the chest. He died of his injuries.
State law requires that concealed weapons classes teach safe handling of a firearm, safe cleaning methods, safe gun storage, and that students demonstrate proficiency with a handgun through target shooting. There is no requirement to practice drawing and shooting with a non-dominant hand. This is an exercise that is taught in police training, which may explain why it was being taught in this class.