You may have killed her when you shoved all those dollar bills down her throat, you may have killed her when you hit her with the stool... I don't know, I'm not a doctor. But I'll tell you what didn't kill her... smoking!
...but I'll tell you what's not cool... ...killing strippers. Strippers are people too; naked people who may be willing to pleasure you for a price you negotiate later behind the curtain of a VIP room. Besides, there's no reason to kill them, 'cause most of them are already dead inside... ...Good night, folks!