Comments about ‘Separating facts from fiction about Prophet's death’

Isn't he adding to myth saying JS chose to sacrifice himself? After all Hyrum and Taylor were shot presumed dead and he was escaping out the window crying out the Mason distress signal? Not to be disrespectful, but I'm not sure how he came to that conclusion.

Facts about the Prophets death. Brigham Young,"But whether Mormons killed Joseph Smith or not is unimportant. Clearly many prominent Mormons yearned for the opportunity to kill him and by taking the oath made themselves as guilty of his death as if they had personally pulled the trigger,whether they did or not. (JoD v.5 p.77)

This is pretty old news. John Taylor's account of the events of June 27 in the Nauvoo Neighbor say nothing about a watch saving him from a bullet.