Lets keep the facts of that case factual and accurate here.
It wasn't a dispute over Drugs that got those two people killed MM.
According to the new's reports, they had been there to purchase drugs, however, the murder's happene because the man that was at Francis Robbs house Slapped Robbs son after his son mouthed off to the man.
And then FR shot him for doing it, along with the female that was with him, who tried to run away, after the man was shot. But Robb chased her down and shot her too, and then burned the bodies, fed some to the hogs and scattered the rest of the remains and ashes through out the county on back country roads.