Magliato's Ferrari was hit by Schneider. They traded insults, Schneider brandished a club, and then they both drove off. Magliato followed Schneider to see were he was going. Magliato then went home, grabbed his gun, and went back armed to were Schneider parked. Schneider came out of his vehicle with a club in hand again. Magliato took aim and shot him in the head. Magliato then got into his car, drove away from the scene, and hide his car. He turned himself in 6 days later. His defense was that the cocked his Colt .38 revolver went off by accident after a car went by and brushed him back. It was argued by the prosecutor that any reasonable person should have know that cocking the hammer on a revolver, taking aim, and putting your finger on a trigger that would go off with just .12" of pull would result in an "unjustifiable risk of firing it unintentionally."
I knew there were other factors. He drove away from the scene, went home, got a gun, drove back, cocked the hammer on the revolver, took aim, left the scene of the crime, hide for several days, and then tried to claim the gun went off by accident. His revolver wasn't even altered with a trigger job. The prosecutor brought up the fact that because Magliato took the time to cock the hammer and aim, that was proof that he wasn't in imminent danger else he would have had fired in DA mode.
The trigger weight and non existing trigger jobs weren't the real reason why he was found guilty. It was his actions before, during, and after the shooting. It was the fact that he cocked the hammer to begin with. I'm not sure how this supports your argument that bring a 12lb-14lb DAO trigger down to 10lb or a 6lb+ trigger down to 4lb=5.5lbs will land one of us who have more common sense than Magliato in prison. The prosecutor wasn't even "overzealous" and NEVER would have said anything about the "hair trigger" if not for Magliato attempting to use it to support his "it was an accident" defense/excuse. I hope that's not the only case you know of and that you're basing your opinion on.