system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5 the Chris Kyle Controversy. (American Sniper)
gpt
He gave versions of certain events in a couple of books and interviews that have been refuted by other people present. One includes a story where he claims to have punched out former pro wrestler turned politician Jesse Ventura who later brought a defamation suit against Kyle. The discrepancy between his stories and the versions told by others calls his credibility into question and has sparked a debate.