parricide
TRANSCRIPT
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THE PSYCHOLEGAL IMPLICATIONS OF PARRICIDAL BEHAVIOR
Adam M. Weisman, Ph.D., Kaushal K. Sharma, MD., 1;Martene Ehrenclou, B.A., and Jennifer A. Gullesserian, B.A. 2
1. USC Institute of Psychiatry, Law and Behavioral Medicine2. Pepperdine University
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Weisman, et al. (1999)
INTRODUCTION
• MATRICIDE, PATRICIDE, ATTEMPTED PARRICIDE
• INCIDENCE: TWO PERCENT OF HOMICIDES (N=300)
• ADOLESCENTS (25%); ABUSED, MENTALLY ILL, ANTISOCIAL
• ADULTS (75%); MENTALLY ILL, ANTISOCIAL, EXOTIC
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Weisman, et al. (1999)
METHODOLOGY
• SUBJECTS: 57 PARRICIDE; 21 ATTEMPTED PARRICIDE
• LOS ANGELES, ORANGE AND RIVERSIDE COUNTIES
• VICTIMS: MOTHER (41), FATHER (25), BOTH (12)
• DATA: FORENSIC REPORTS, ARRESTS AND COURT RECORDS
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Weisman, et al. (1999)
PARRICIDE ATTEMPTPREMORBID CONDITION
• 18 MALES, 3 FEMALES
• AVERAGE AGE= 30.38 (SD= 9.9); RANGE 19-56
• 48% CAUCASIAN, 29% AFRICAN-AMERICAN, 5% HISPANIC
• 59% POSITIVE FAMILY MENTAL HEALTH HISTORY
• 70% LIVING WITH VICTIM(S), 62% UNEMPLOYED
• 65% PRIOR THREATS, 47% PRIOR ASSAULTS
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Weisman, et al. (1999)
PARRICIDE ATTEMPTPSYCHOLOGICAL HISTORY
• 85% PRIOR INPATIENT HISTORY, MODE (45%)= 2-3 TIMES
• MODE (60%) DIAGNOSIS: PSYCHOTIC CLASSIFICATIONS
• 58% SUBSTANCE USE DISORDER UNDERLYING PRIMARY DX
• DRUG USE: ALCOHOL, PCP, COCAINE
• 85% PRIOR CRIMINAL CONVICTIONS; 56% VIOLENT CRIME HX
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Weisman, et al. (1999)
PARRICIDE ATTEMPTCRIME SCENE DATA
• VICTIMS: 14 BIOLOGICAL MOTHERS, 5 BIOLOGICAL FATHERS
• ONE DOUBLE ATTEMPT
• AVERAGE AGE= 59 (SD=13.24); RANGE 40-84
• 90% AT HOME, 81% WITNESSES PRESENT/NEARBY
• 62% KNIFE; 14% FIREARM; 14% STRANGLING; 10% BEATING
• 26% INTOXICATED: ALCOHOL, AMPHETAMINE, COCAINE
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Weisman, et al. (1999)
PARRICIDE ATTEMPTCRIME SCENE DATA
• MOTIVE: 57% DELUSION; 19% QUARREL; 19% FIDUCIARY
• RESPONSE: 48% NOTHING, 24% FLED, 24% COMBATIVE/SUICIDAL
• 57% OPEN CONFESSION; 19% ACTIVE CONCEALMENT
• CHARGE: (14) ATT MURDER, (2) VOL ATT MAN, (5) AGG ASSAULT
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Weisman, et al. (1999)
PARRICIDE ATTEMPTLEGAL PROCEEDINGS
• COMPETENCY: 95% RAISED, 9 (45%) INCOMPETENT
• 15 MONTHS RESTORATION (SD=10.47), RANGE 3-36
• TWO CASES UNRESTORABLE
• DEFENSE STRATEGY: 68% NGRI; 33% DIMINISHED INTENT
• 76% PSYCHOTIC, 24% SUBSTANCE USE
• (10) CASES GUILTY, (8) NGRI, (1) AQUITTED
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Weisman, et al. (1999)
PARRICIDEPREMORBID
• 51 MALES, 6 FEMALES
• AVERAGE AGE=29.26 (SD= 10); RANGE 14-54
• 61% CAUCASIAN, 21% AFRICAN-AMERICAN, 11% HISPANIC
• 65% FAMILY PSYCH HX; 58% FAMILY DRUG HX
• 80% LIVING WITH VICTIM(S), 72% UNEMPLOYED
• 43% PRIOR THREATS, 34% ASSAULTS
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Weisman, et al. (1999)
PARRICIDEPSYCHOLOGICAL HISTORY
• 55% PRIOR INPATIENT HISTORY (20% 4-6x; 19%> 7x
• MODE DIAGNOSIS: 46% PSYCHOTIC; 30% NO PRIOR DX
• 55% SUBSTANCE USE DISORDER UNDERLYING PRIMARY DX
• DRUG USE: ALCOHOL, CANNABIS, COCAINE
• 55% PRIOR CRIMINAL CONVICTION; 36% VIOLENT CRIME HX
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Weisman, et al. (1999)
PARRICIDECRIME SCENE DATA
• VICTIMS: 31 BIOLOGICAL MOTHERS, 3 NONBIOLOICAL, 22 BIOLOGICAL FATHERS, 1 NONBIOLOGICAL
• ELEVEN DOUBLE CASES
• AVERAGE AGE: 60 (SD=13); RANGE 35-85
• 95% AT HOME, 40% WITNESSES PRESENT/NEARBY
• 42% KNIFE, 25% FIREARM, 19% BEATING, 9% STABBING, 5% SUFFOCATION
• 15% INTOXICATED, ALCOHOL
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Weisman, et al. (1999)
PARRICIDE CRIME SCENE DATA
• 51% DELUSION; 21% QUARREL; 16% FIDUCIARY; 7% RELATION; 5% RAGE
• 23% DID NOTHING, 40% FLED, 20% COMBATIVE/SUICIDAL
• 70% OPEN CONFESSION, 21% ACTIVE CONCEALMENT
• CHARGE: (57) MURDER, 14% SPECIAL CIRC
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Weisman, et al. (1999)
PARRICIDELEGAL PROCEEDINGS
• COMPETENCY: 51% RAISED, 11(38%) INCOMPETENT
• 19 MONTHS RESTORATION (SD= 12) RANGE 3-36
• TWO CASES UNRESTORABLE
• DEFENSE STRATEGY: 71% NGRI, 11% EXOTIC; 16% DIM INT/CAP
• 59% PSYCHOTIC, 23% AFFECTIVE, 13% AXIS II, 5% SUBS ABUSE
• 61% CASES GUILTY, 20(37%) NGRI
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Weisman, et al. (1999)
GROUP DIFFERENCES
PARRICIDE TYPE• INPATIENT TREATMENT• ADULT VIOLENT HISTORY• WITNESSES• INTOXICTION• COMPENTENCY RAISED• FORENSIC DIAGNOSIS• DISPOSITION
DISPOSITION• ETHNICITY• MOTIVE• DRUG INFLUENCE• FORENSIC DIAGNOSIS
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Weisman, et al. (1999)
SUMMARY
• PRIMARY SUBTYPES: SEVERE MENTALLY ILL & ANTISOCIAL
• ATTEMPTERS: PSYCHIATRIC INSTABILITY & VIOLENT
• MALE OFFENDER: MOTHER>FATHER; DOUBLE- PARRICIDE
• PARRICIDE ATTEMPT WITNESSES COMMON
• PRIOR THEAT AND/OR ASSAULT COMMON
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Weisman, et al. (1999)
SUMMARY
• KNIVES, FIREARMS AND BAREHANDS COMMON
• DRUGS RARELY PRECIPITATED EVENT
• 36% NGRI SUCCESS RATE • (8/18 ATTEMPTED; 20/53 PARRICIDE)
• ETHNICITY AND DISPOSITION DIFFERENCES
• 30% SAMPLE REPRESENTATION ESTIMATE