claim: Chris Benoit died in June.
evidence: `` Murder Most Foul '' is the twelfth episode of the sixth season of the American fantasy drama series Once Upon a Time , which aired on March 12 , 2017 .. Once Upon a Time. Once Upon a Time ( TV series ). sixth season. Once Upon a Time ( season 6 ). In this episode , The origins of the mystery surrounding the death of David 's father is detailed in the flashback and the present day , while Hook grapples with proposing to Emma , and Regina starts to question her decision to bring the Wish Realm Robin back .