Stuff like this is probably happening more than is being reported:
One witness told detectives a group of people were at the home smoking marijuana when Henry and Popp got into an "argument over Donald Trump" as the suspect was sharpening a knife. The argument became louder so another witness told the pair to "take it outside," the affidavit said. A short time later Henry pushed Popp back into a sliding glass door, and stabbed him in the chest.
"You stabbed me you son of a b—," Popp said, per the affidavit.
Popp walked outside and across the street before he collapsed.
Post Miranda, Henry claimed self-defense. He said he and Popp were talking in the living room when they started arguing about "Donald Trump filing for bankruptcy." The complaint did not explain the argument any further.