Nope, there is absolutely no evidence that someone has ever died of the plant that has been used for more than 10,000 years. Dr. Kudair Hussein added: "The physical examination and the examination of various organs, including the heart and the liver, showed no abnormality that could account for her death. The level of canabinoids in the blood were 0.1 to 0.15 miligrams per liter; this is considered as moderate to heavy cannabis use. I looked through literature, and it's well known that cannabis is of very low toxicity. But there are reports which say cannabis can be considered as a cause of death because it can induce a cardiac arrest."