Some prisoners claim von Braun engaged in brutal treatment or approved of it. Guy Morand, a French resistance fighter who was a prisoner in Dora, testified in 1995 that after an apparent sabotage attempt, von Braun ordered a prisoner to be flogged, while Robert Cazabonne, another French prisoner, claimed von Braun stood by as prisoners were hanged by chains suspended by cranes. However, these accounts may have been a case of mistaken identity. Former Buchenwald inmate Adam Cabala claims that von Braun went to the concentration camp to pick slave laborers: