Extrapolation of data in regards to West Mesa 

 

Based on FBI’s research, we can logically conclude the West Mesa killer:

  • Had sexual motivation for murders (100%)

  • Had no prior relationship with victims and was a client-stranger (100%)

  • Approached victims and asked them for a “date” (99%)

  • Was between 21-43 years old

  • Had prior arrest record (93%)

  • Assaulted and killed victims in same location (80%)

  • Met victims on Central Avenue, either on the Westside near Coors Blvd or Eastside near Louisiana Blvd (75%; these are the Albuquerque equivalents to “known vice areas” that are referred to in report)

  • Was employed (70%)

  • Drove to murder site (66%)

  • Strangled victims (63%)

  • Had a high-school diploma (52%)

 

Based on data, what we CANNOT conclude about the West Mesa killer:

  • Location of assault — assaulted in his residence (34%) OR assaulted in outdoor location (23%) OR assaulted in his vehicle (18%)

  • Location of murder — killed in his residence (34%) OR killed in outdoor location (26%) OR killed in his vehicle (18%)

 

Based on FBI data and what we know about the burial site, the West Mesa killer is similar to other prostitute killers in that:

  • He used public outdoor area to dispose of bodies (83%)

  • Took victims clothing, so they were nude (75%)

 

Based on FBI data and what we know about the burial site, the West Mesa killer is dissimilar to other prostitute killers in that:

  • He transported the bodies and then concealed them (26%)

  • He buried the bodies (2%)

    • According to the FBI data, killers who conceal bodies fear they can be tied to the victims or want to delay discovery of the bodies so they can continue killing

 

In the prostitute serial killer cases studied by the FBI, the killers were more likely to transport a body and then dump it (37%) or leave the body at murder site (30%). They were less likely to transport a body and then conceal it (26%), as the West Mesa killer did. Also, of those prostitute killers who did conceal the body, they were most likely to conceal it on the surface (14%) or in water (10%). As stated above, in only 2% of the cases were the victims buried, as happened in the West Mesa case.

THE MISSING

The following is from "Serial Murder: Pathways for Investigations," which was published by the FBI's Behavioral Analysis Unit in June 2015. The FBI put out this document after 5 years of empirical research as a way to help investigators quickly identify and establish patterns of serial killers. A section of the document focuses specifically on those killers who target prostitutes. That information is quoted below as it relates to the West Mesa case.

GENERAL INFO

 

About the FBI's research

  • Total killers and victims in study: 92 offenders; 480 victims

  • Total prostitute killers and victims in study: 27 of 92 offenders killed prostitutes; 154 of 480 victims were prostitutes

    • 29% of the serial killers targeted prostitutes

 

About prostitute serial killers offenders

  • 21-43 — age of offender

  • 100% of offenders had customer/client relationship with victims

  • 100% of murders were sexually motivated

  • 99% used ruse/con approach to gain access to victims

  • 93% had prior arrest record

  • 75% of offenders made contact in known vice areas

  • 70% were employed

  • 67% killed three or more victims

  • 56% black; 33% white; 7% Hispanic

  • 52% had high-school diploma

  • 41% lived as dependents on family or lover

  • 41% had some college

  • 26% were married

  • 11% diagnosed with mental health disorder

 

Primary location of initial assault on prostitute victim:

  • 34% offenders’ residence

  • 23% outdoor public area

  • 18% offenders’ vehicle

 

Primary murder location for prostitute victim:

  • 80% of prostitute victims were assaulted and killed in the same location

    • 34% of prostitute serial killers used their own residence to kill

    • 26% used public outdoor areas

    • 18% used their vehicles

 

Disposal sites for prostitute victim:

  • 83% used outdoor public disposal areas

  • 5.2% used their residence

  • 8.4% used other location

 

Method of getting to disposal sites:

  • 66% of offenders drove to the murder site

 

Method of killing:

  • 63% used strangulation

  • 18% blunt force trauma

  • 10% undetermined

 

Victim’s body:

  • 75% were found nude or partially nude

  • 62% evidence of sexual contact

  • 29% DNA found on/in victim

 

Body disposal:

  • 37% Transported then dumped

  • 30% Left at murder site

  • 26% Transported then concealed

    • Concealment locations: Surface 14%; water 10%; burial 2%

  • 5% Left at murder site then concealed

  • Less than half of offenders changed body disposal scenarios between killings

 

Time frame:

  • 40% of cases timeframe could not be determined

  • 29% between 1-15 days

  • 27% found less than a day after murder

  • 4% after 15 days

FBI data on serial killers who target prostitutes

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