and that he never meant to kill Dag; it was a "terrible accident". Christian was sentenced to ten years in jail in 1991, and Cheyenne committed suicide in 1995. Cheyenne was abusive toward her two sisters, Maimiti and Raiatua, as well as towards Marlon Brando and Tarita, her parents, particularly her mother. Tarita Teriipaia wrote a book in 2005, which revealed Cheyenne terrorized her own family, as a result of her suffering from schizophrenia. The French serial killer Guy Georges physically abused his adoptive elder sisters when he was 14, nearly killing them. In 2013, the Australian actor Hugh Jackman opened up about the physical and verbal abuse by his older brother. He said the abuse helped his acting in Wolverine, and that when his brother apologized, Jackman felt released. See also Child-on-child sexual abuse Child sexual abuse Siblicide Sibling relationship References Further reading Wiehe, Vernon R. What Parents Need to Know About Sibling Abuse: Breaking the Cycle of Violence (2002) Caffaro., J. & Conn-Caffaro, A. (1998). Sibling Abuse Trauma, NY: Routledge. Caffaro, J. (2013). Sibling abuse trauma. 2nd Edition. NY: Routledge. Caspi, J. (2012). Sibling Aggression: Assessment and Treatment. NY: Springer Publishing Child abuse Domestic violence Abuse Incestual abuse Sibling rivalry