Rio Grande Valley Friends and Families of Murdered Children

Proudly Introduces the RIO PROJECT COLD CASE HOMICIDE DATABASE: A Regional Initiative to Spotlight Unsolved Murders and Amplify the Voices of Victims and Their Families

The Rio Grande Valley Families and Friends of Murdered Children (RGV-FFOMC) is honored to announce the launch of the Rio Project Cold Case Homicide Database—a first-of-its-kind initiative designed to centralize and bring public attention to unsolved homicide cases throughout the Rio Grande Valley. This comprehensive and publicly accessible database will be a powerful tool for elevating awareness, supporting grieving families, and encouraging renewed investigative efforts.

Phase I – County Coverage:
The initial rollout will include unsolved homicide cases submitted from the following four counties:
  • Hidalgo County
  • Cameron County
  • Starr County
  • Willacy County

Each entry will be verified and submitted by either:
  • Local law enforcement agencies, or
  • Surviving family members seeking to keep their loved one’s memory alive and case visible.
RGV-FFOMC plans to expand the database to include additional counties across the region as resources allow.

Why This Matters:
Keeping a homicide victim’s case in the public eye not only honors their memory but also increases the likelihood of generating new leads, witnesses, or information that may help bring justice—visibility matters. Awareness saves cases.

How to Submit a Case:
Families or law enforcement agencies wishing to submit an unsolved homicide case for inclusion may do so by completing the official Case Summary -
Cold Case Submission - Google Forms

Submission Form
. Submission does not guarantee immediate inclusion; all entries are subject to verification and review.

⚠️ Please Note:

Rio Project Cold Case is not a private investigative service. This initiative is strictly for public awareness and advocacy purposes. All investigative matters remain under the jurisdiction of the appropriate law enforcement agencies.

Search

Show More Options

167 cases found.
CCR: 09-04019
Date Reported: January 30, 2009
VICTIM DETAILS
Name Andres Ruiz
Age 23
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name unknown
Offense Murder
Cause Blunt Force
Location unknown
CASE DETAILS
Status Unsolved
Incident location S. Mile 10 on La Homa Rd.
Alton Texas, 78573
Hidalgo
L.E.A Hidalgo Co. Sherriff's Office

CCR: 17-02143
Date Reported: January 15, 2017
VICTIM DETAILS
Name Javier Olvera Jr.
Age 22
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Agustin Mendoza, Francisco Hernandez, Lenin Gonzalez
Offense Hit and Run
Cause Beaten/Battered
CASE DETAILS
Status Arrest Made
Incident location 6222 Victoria
Donna Texas, 78537
Hidalgo
L.E.A HCSO

Cold Case Spotlight

A judge sentenced a Donna man to 20 years in state prison after he pleaded guilty to first-degree murder on Wednesday. Lenin Gonzalez, 34, of Donna pleaded guilty to stabbing Javier Olvera with a knife on Jan. 15, 2017. Olvera later died at a hospital. Investigators believe the murder resulted from a dispute over money during a drug deal on the 6000 block of North Victoria Road. Investigators later found a bloody knife believed to be used in the murder during a search warrant at a suspect’s house. Investigators arrested three suspects in connection with Olvera’s death: Gonzalez, then 23-year-old Agustin Mendoza and then 26-year-old Francisco Hernandez. On March 27, 2018, Hernandez pleaded guilty to Olvera’s murder and was sentenced to 30 years in state prison. Mendoza is set to return to court for a pre-trial hearing later this month.
CCR: Unknown
Date Reported: October 18, 1988
VICTIM DETAILS
Name Eduardo A. Cuellar
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Cameron County
L.E.A Cameron County Sheriff's Office

Cold Case Spotlight

CAMERON COUNTY, Texas (ValleyCentral) — A knock on the door from a stranger lead to the abduction and murder of a local man. 33 years later, the murder of Eduardo A. Cuellar remains unsolved with no arrests. On October 18, 1988, at approximately 6 p.m. two men arrived at Cuellar’s front door asking for him by name. Cuellar approached the men outside his home when a man put a gun against his rib cage area and forced Cuellar into a black Chevy Balzer where a third man was waiting. The gunman was described as a Mexican man with a mustache wearing a baseball cap, weighing approximately 160 pounds with a height of 5 feet 6 inches, and is estimated to be around 30 years old, according to the Cameron County Sheriffs Office. Family members of Cuellar followed the Chevy from a distance. The vehicle turned around after Cuellar’s body had already been left on the side of the road with multiple gunshot wounds. Investigators say the suspect’s last name may be “Leal” or “Lopez.” This investigation remains active and unsolved. If you have any information on this case, please call the Cameron County Crime Stoppers at their hotline: (866)-350-5551 or (956)-350-5551.
CCR: 99-18929
Date Reported: November 3, 1999
VICTIM DETAILS
Name Juan Luis Garza Alaniz
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location North of 9 North on 6 1/2 West
Weslaco Texas, 78596
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: 88-20798
Date Reported: December 16, 1988
VICTIM DETAILS
Name Charles McCumber
Gender Male
Race Caucasian/White
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location E. of Mile 2 1/2 E. Mile 6 3/4 N.
Mercedes Texas, 78570
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: Unknown
Date Reported: August 1, 1991
VICTIM DETAILS
Name Unknown
Gender Male
Race Caucasian/White
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1/8 north of, 6 1/2 north of, 6 1/2 west
L.E.A Hidalgo County Sheriff's Office

CCR: 96-24404
Date Reported: August 24, 1996
VICTIM DETAILS
Name Jose Guadalupe Salinas
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Beaten/Battered
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1/4 South of FM 2221 (HWY 107) o5n Iowa Rd
Mission Texas, 78572
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: 14-24315
Date Reported: June 11, 2014
VICTIM DETAILS
Name John Doe 4
Gender Unknown
Race Unknown
SUSPECT DETAILS
Name Unkown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 2419 Melissa
Weslaco Texas, 78596
Hidalgo
L.E.A Hidalgo Co. Sherriff's Office

CCR: 17-40788
Date Reported: October 16, 2017
VICTIM DETAILS
Name Gerardo Alberto Gomez Martinez
Age 38
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Michael Valle Chavez
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 12102 n Los Ebanos Rd
Alton Texas, 785733
Hidalgo
L.E.A HCSO

Cold Case Spotlight

Hidalgo County Sheriff Eddie Guerra on Tuesday identified the victim of a homicide that occurred Monday night. Gerardo Alberto Gomez Martinez, 38, of Mission was found dead near Alton. As CBS 4 News previously reported: At about 10 p.m. Monday, the Hidalgo County Sheriff’s Office dispatched deputies to investigate a call about shots fired near the intersection of Mile 7 and North Los Ebanos Road, said Sheriff Eddie Guerra. Investigators found a 38-year-old Hispanic man — wearing blue jeans and a red jacket — dead at the scene. “There was a four-door Nissan passenger car here at the scene. We believe that the victim got to this location in that car,” Guerra said. “The neighbors do not recognize the victim nor the vehicle.” Guerra said investigators determined the Nissan’s license plates didn’t match the vehicle.
CCR: 04-18832
Date Reported: July 17, 2004
VICTIM DETAILS
Name John Doe 9
Gender Male
Race Unknown
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Beaten/Battered
Location Unknown
CASE DETAILS
Status Unsolved
Incident location S. Mile 3 on FM 492
Palmview Texas, 78572
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office