Sitting in an audience at a play in Hartford
At a guess, I'd imagine he was trying to shift the gun/holster, and stroked the trigger. His fault.
But according to Cooper, Taylor, Ayoob, Hackathorn, Farnam, and the rest, standard carry is loaded chamber, cocked & locked w/single action, hammer down on a DA.
Actually, unless you have kids in the house, or the gun is in a safe, there is an argument to be made that a handgun should ALWAYS be loaded if it is readily accessible- the bulk of accidents occur because people mistakenly thought the firearm they were handling was unloaded. Keeping it ALWAYS loaded eliminates any possibility of confusion.
I guess I would disagree. An unchambered pistol is a very expensive club. It takes less than 2 seconds to transform this club to a deadly weapon. A club NEVER mis-fires and strikes an innocent. A dropped pistol, has killed on more than one occassion.