IIRC the one that named drugs placed them as a contributing factor. I don't find that as changing much. It's like how if someone with a blood-thinning condition gets stabbed and bleeds to death because their condition causes their blood to not clot and reduce/stop the bleeding. The condition contributed, yeah, but the person wouldn't have died if they hadn't been stabbed in the first place.
Or are you trying to say Floyd would've died even if Chauvin hadn't put his knee on his neck for nine minutes?