Psychiatry
Killing one’s parents: an unpredictable act


On March 22, 2000, a teenager in Arundel, Québec (a town in the Laurentians), killed his mother in the basement of the family home, and then went to the shop where his father was working, and murdered him too. At the trial, his former friends were dumbfounded. The young man (whose name cannot be released) was “peaceful and quiet” and had apparently never said anything bad about his parents. One witness even said that his friend “hated violence.”

According to Jacques Marleau, a researcher in the Philippe-Pinel Institute, a Montréal institute affiliated with Université de Montréal, a teenager who kills one of his parents generally has fewer violent psychiatric antecedents than an adult who commits the same crime. The young person generally lives in the family home and attacks both parents at once—more often than in the case of an adult murderer. In addition, according to the results of a study of parricide presented in Amsterdam recently, the victims of young parricides are much less likely to have given their children space of their own. “These teenagers make a radical attempt to escape parental domination, and sometimes, longstanding sexual or physical violence as well,” Mr. Marleau points out.

But this is not always the case. According to this specialist on intrafamilial homicide, the author of a doctoral thesis recently submitted to Université de Montréal, some young people, like patricidal adults, suffer from severe psychiatric pathology. “Since paranoid schizophrenia in adults is not always diagnosed and treated, they may commit a crime during a psychotic episode. This type of murder is often characterized by the phenomenon of overkill. The victim may have been stabbed, say, 47 times.”

The researcher noted that parricides among teenagers aged 18 years or under are less psychologically troubled than older murderers. It is more difficult to predict when they will lose control, given that the personality disorders they are suffering are rarely recognized by the parents. Unlike adults, they generally commit their crimes without making prior death threats. The reasons why teens kill one or both parents vary: personality disorders, psychosis, incest, jealousy, altruism, reactional act, financial loss, etc. In most cases, “9 times out of 10,” Mr. Marleau figures, “the murder is perpetrated by a young male adult. “The scientific literature reports only 38 cases of parricidal women worldwide.”

To arrive at these results, Jacques Marleau, assisted by two clinicians at the Philippe-Pinel Institute, criminologist Nathalie Auclair and psychiatrist Frédéric Millaud, extracted relevant information from the files of 53 patients hospitalized at the psychiatric centre between 1973 and 1999 who had committed parricide. Comparative analysis of the subjects demonstrated not only distinct profiles for adults and teenagers in the sample, but also between those who had killed or attempted to kill a single parent.


Researcher: Jacques Marleau
Telephone: (514) 648-8461, extension 627
Email: marleauj@videotron.ca

 


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