In an analysis extrapolated from an interview with a Mossad agent involved in Operation Spring of Youth, and contrary to the Israeli claim that the "Verdun operation" came after the kidnapping and killing of Israeli athletes in Munich, Operation Wrath of God was planned months ahead of the Olympic games crisis, and was not a related to a Black September. In his book, "The Israeli Secret Services", Ami Pedahzur claims that Adwan seemed to have little or no connection to the Munich hostage crisis, suggesting Mossad's non-involvement in his death. According to Mohammad Odeh Dawood (AKA Abu Dawood), who published his book, "From Jerusalem to Munich", Adwan claimed he and two other leaders were masterminds of the Munich hostage crisis.