Cold Case Files

Author:

Petra Orta Public Safety Computer Specialist Records & Technology Operations

Summary:

Cold Case homicides for the City of Yuma.

Last Updated:

8/6/2008

A cold case homicide is a homicide that remains unsolved for at least one year after being reported to law enforcement and has no viable and unexplored investigatory leads.

Because of recent advancements in fingerprint and DNA technology many “cold cases” are being re-examined to determine if this technology can help in solving these crimes.

Another method in solving “cold cases” is with the help of members of our community who have knowledge and information to develop leads that aid in the arrest and prosecution of these perpetrators.

Below is a synopsis of “cold case” homicides for the City of Yuma. If you have any information that would assist our Agency in solving these deaths, please contact:

  • The Yuma Police Department Investigations Unit at (928) 373-4670
  • OR 78-CRIME (782-7463) if you wish to remain anonymous
  • OR Send us an e-mail.

 

 Rhonda Fortney
Rhonda Fortney - Case Number 69-73994
In the evening hours of November 4, 1969, a male subject contacted Rhonda Fortney, 20 years of age, in front of her apartment on Orange Avenue in Yuma, Arizona and shot her with a handgun resulting in her death. After the shooting, the male subject fled from the scene in what was described by witnesses as a Pontiac style sedan. A motive for this homicide has not been determined. Anyone with information about this crime is asked to contact our agency.
   


No
Photo
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Vicki E. Moser - Case Number 78-13888
In the early morning hours of July 26, 1978 a robbery occurred at the Circle K store at 890 E. 24th Street in Yuma, Arizona. During the commission of this crime, V. Moser, employed as a clerk, was shot and killed. As of this time there are no known suspect/s in Moser's death. Anyone with information about this crime is asked to contact our agency.
   


No
Photo
Available

Dorothy Smock - Case Number 79-19594
On September 29, 1979, person/s unknown entered a commercial building on W. 17th Street, bound and gagged Dorothy Smock, who was alone at the time, causing her death. The motive for the murder was possibly a robbery as her purse was found scattered on the floor in a corner of the building and no money was located. Anyone with information about this crime is asked to contact our agency.
   
 Amberly Mendoza
Amberly Mendoza - Case Number 96-3658
On the morning of March 9th, 1996, 10-year-old Amberly Mendoza was found murdered in her room at 1740 W. 24th Lane, Yuma, Arizona. Amberly was the victim of a sexual assault and was asphyxiated. Several family members were within the residence during the time of the incident.
DNA evidence recovered from the scene and on her body confirms that a non-family member was in the home and was responsible for Amberly's death. Anyone with information about this crime is asked to contact our agency.
   
 Pedro Acosta Perez
Pedro Acosta Perez - Case Number 04-17008
In the evening hours of Tuesday, March 9, 2004, in front of apartment #54 at 125 S. 10th Avenue in Yuma, Arizona, Pedro Perez was involved in a confrontation with unknown subject/s. The victim was stabbed twice, which resulted in his death. Anyone with information about this crime is asked to contact our agency.
   


No
Photo
Available

Evelyn Halsey - Case Number 84-11370
On April 16, 1984,  Evelyn Halsey was found deceased in her apartment in the 2100 block of 11th Avenue. The cause of death was due to blunt trauma to her chest and head. A motive for this homicide is unknown.  Anyone with information about this crime is asked to contact our agency.
   
 Benjamin Carrier
Benjamin Carrier - Case Number 82-10331
In the afternoon of November 10, 1982, Benjamin Carrier was discovered deceased in a motel room at the El Rancho Motel, 2201 S. 4th Avenue. The victim's hands and legs were bound by tape and he had been asphyxiated. Motive for the homicide was possibly a robbery as the victim's vehicle was later located in Las Vegas, NV. Anyone with information about this crime is asked to contact our agency.
   


No
Photo
Available

Linda Dorsey - Case Number 98-9785
In the evening hours of July 10, 1998, the body of LInda Dorsey, 28 years of age, was discovered in a desert area along the east main canal in Yuma.  A motive for this homicide is unknown.  Anyone with information about this crime is asked to contact our agency.
   
 Frances Nizenkoff
Frances Nizenkoff – Case Number 94-16043
On December 3, 1994, Frances Nizenkoff, 69 years of age, was at Adair Park, a public shooting range east of Yuma off Highway 95, and was completing duties for the Yuma Trap and Skeet Club. She was last seen around 4:30 p.m on December 3, 1994. The body of Nizenkoff was located at 2:00 p.m. on December 10, 1994, in the area of the park along with her motor home. She had been shot several times with a .22 or .25 caliber gun. A possible motive for this homicide was robbery of money and weapons. Anyone with information about this crime is asked to contact our agency.
   


No
Photo
Available

Billy Gene Duncan – Case Number 84-33521
On November 22, 1984, around 11:00 p.m., the victim was with two other subjects at a residence in the 400 block of South 10th Avenue. An argument ensued between the victim and a subject named "Mingo." The argument resulted in "Mingo" shooting the victim, resulting in his death. The subject named "Mingo" has never been identified and the investigation has information that “Mingo” fled to Mexico after the incident. Anyone with information relating to this crime is asked to contact our Agency.

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