Conversation so far:
Tell me something about George Best's alcoholism.
George Best suffered from alcoholism for most of his adult life, leading to numerous controversies and, eventually, his death.
What controversies did George Best's alcoholism lead to?
In 1981, while playing in the United States, George Best stole money from the handbag of a woman he did not know in order to fund a drinking session.
When or where did George Best steal the money from the woman?
George Best stole money from a woman's bag in 1981 while sitting in a bar on the beach...“
Did the woman find out it was George Best who had stolen her money from her handbag in 1981?
Was George Best arrested?
George Best received a three-month prison sentence for drink driving, assaulting a police officer and failing to answer bail.
Did George Best have any controversy based around his games?

Question: why did people believe that he did?
Self-contained rewrite: Why did people believe that George Best did?