Conversation so far:
What was the relationship between Wild Bill Hockok and the duel with Davis Tutt?
Hickok lost a gold watch to Tutt in a poker game.They initially agreed not to fight over the watch, but when Tutt wore it, Hickok warned him to stay away.
How was the problem with Davis Tutt and Wild Bill Hickok's gold watch resolved?
The two men faced off in Springfield's town square, standing sideways before drawing and firing their weapons. Their quick-draw duel was recorded as the first of its kind.
What other person besides Davis Tutt did Wild Bill Hickok have a disagreement with?
Hickok and Phil Coe, a saloon owner and acquaintance of Hardin's, had a dispute that resulted in a shootout.

Question: Who was Bills main opposition?
Self-contained rewrite: Who was wild Bill Hickok's main opposition?