Final answer:
The supporting evidence in the article that shows Poe died of alcohol poisoning can be found in his biography and visual evidence such as engravings.
Step-by-step explanation:
The supporting evidence in the article that shows Poe died of alcohol poisoning can be found in his biography. In Marie Bonaparte's book, The Life and Works of Edgar Allan Poe, she discusses Poe's struggle with alcohol and how it ultimately led to his death. This biography provides insight into Poe's drinking habits and the impact it had on his health. Additionally, visual evidence such as the engravings depicting the negative consequences of alcohol consumption also support the claim that Poe died of alcohol poisoning.