What's interesting is that only the Ventura story can be directly linked to something Kyle said or wrote himself. Everything else is based on what other people said he said. You know, "secondhand" stories?
Additionally, his military prowess, which the movie was based on, has, for the most part been confirmed. So, it would seem that the OP has something against people who lie, particularly those that lie that may be suffering from PTSD. Doesn't matter, apparently, how he lived his life, what he did otherwise. He told, or more appropriately - with the exception of the Ventura story - may have told some outragious lies that anyone with common sense would question, and that's enough for the OP to be pleased that he's dead.