Sounds Like a Righteous Sort of Beating

Reading this story, you get the impression that Younger Brother was turned on to the drugs that killed him by Evil Roommate, which pissed off Older Brother, who went upside Evil Roommate's head with a 2x4. Might be why the DA is only bringing Voluntary Manslaughter charges instead of 2nd Degree Murder. Presumably there were no Skittles involved.