No one intimates a person with a loaded weapon unless they're intending to use it, knowing full well it could result in death or injury if the trigger is pulled. It's premeditation to bring a weapon into a fight/disagreement.
Imo, this is the reason GL has introduced the scenario that RH seized the weapon from his vehicle but strangely, RH stood his ground beside his own vehicle after retrieving it. RH has to be the aggressor and caused his own and Carol's death.
This is a highly implausible scenario, add to it, why wrestle the weapon away from RH when he knew it was loaded, in his own story, RH wouldn't know it was loaded but he did. Whose finger was on the trigger?
Did he fear for his life or just wanted his possession back?
Killers who go to extraordinary lengths to cover up a crime seem to have the most fantastical stories about what happened when they're captured. Why not go to the police in the first place?
Repainting his truck the first time points to him being involved in an altercation or misdemeanor he could have lost his job over, I imagine he's 'a slash their tyres and run', type of guy. Jmo