Conversation so far:
What happened after Osceola's death?
Osceola was buried with military honors at Fort Moultrie.
Why did Dr. Frederick Weedon cut off Osceola's head?
Dr. Frederick Weedon apparently preserved Osceola's head in a large jar of alcohol and took it to St. Augustine, where he exhibited it in the family drugstore.
Did Dr. Frederick Weedon torch any of his body part?
No, nothing of Osceola was torched.
Was the head, Dr. Frederick Weedon kept for so long, embalmed?
No, Dr. Frederick Weedon apparently preserved Osceola's head in a large jar of alcohol and took it to St. Augustine, where he exhibited it in the family drugstore.
Is Osceola's family member not mentioned in the article?
Chief Joe Dan Osceola, Ambassador of the Seminole Tribe, was Osceola's great-great-great grandson.

Question: When did he do that?
Self-contained rewrite: When did Dr. Frederick Weedon cut off Osceola's head?