I am not aware of a death following cosmetic Botox treatment. Blood clots are also highly unlikely and something I have never seen in practice. These stories are usually related by a friend of a friend of a cousin who read the story on the internet. In experienced hands, Botox is incredibly safe but every procedure has inherent risks. It's just that the complications you are inquiring about have not occurred in my experience. The most common complication from Botox is a small bruise at the area of injection which can be covered up with makeup immediately. I hope this information is helpful.Stephen Weber MD, FACS
According to the literature included in a box of cosmetic Botox from Allergan, there is a list of reported adverse rections that is available to read also on-line.