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.

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167 cases found.
CCR: Unknown
Date Reported: January 16, 2011
VICTIM DETAILS
Name Jose "Luis" Martinez Jr.
Age 14
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name 3 Suspects-Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 232 West Longoria Street
Pharr Texas, 78577
Hidalgo County
L.E.A Pharr Police Department

Cold Case Spotlight

Jose Luis Martinez Jr., 14, died with a fatal shot that hit his chest at about 11:31 p.m. on Jan. 16, 2011, during a drive-by shooting on the 200 block of West Longoria Street, according to the Police Department. Two of the bullets each struck relatives 27-year-old Christopher Lee Perez and 30-year-old Jodie Cristina Cross. The single gunshot, believed to have been fired from a .380-caliber pistol, took Jose Luis life. At least three suspected gang members shouted their group’s name — Loco Trece — as they sped away from the 200 block of West Longoria Drive about 11:30 p.m. Sunday. Witnesses at the scene described a red passenger vehicle, possibly a Honda, occupied by three to four subjects leaving the crime scene of the shooting westbound on Longoria street in Las Milpas (South Pharr), Texas.
CCR: 96-26006
Date Reported: September 10, 1996
VICTIM DETAILS
Name Unknown
Gender Female
Race Caucasian/White
SUSPECT DETAILS
Name Unknown
Offense Suspicious Death
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Whalen Rd and Border Rd
Donna Tx, 78537
L.E.A Hidalgo County Sheriff's Office

CCR: 04-01590
Date Reported: January 19, 2004
VICTIM DETAILS
Name Eluina Calderon Ruiz
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 12 1/2 NW on Mile 12
Mission TX, 78572
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: Unknown
Date Reported: September 6, 1988
VICTIM DETAILS
Name Arnaldo Garza Sr.
Age 45
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 822 W Wisconsin Rd
Edinburg Texas , 78539
Hidalgo County
L.E.A Edinburg Police Department

Cold Case Spotlight

EDINBURG, Texas (ValleyCentral) — An Edinburg family paid $70,000 for the safe return of their loved one only to have him discovered decomposed in a sugarcane field. Three decades later, Arnaldo Garza’s murder remains unsolved. Garza was a husband and welder, known for starting A&A Welding. The 46-year-old man was taken from his home and used as ransom on November 6, 1988, according to Texas DPS. His family received a call stating that Garza had been kidnapped, demanding money to be delivered to Reynosa, Mexico. Reporting the disappearance to authorities, the family delivered the $70,000 in ransom to an individual in Reynosa. Raul Garza, the Assistant Chief of the Edinburg Police Department at the time, immediately advised the kidnapping to the FBI. Additionally, the family reported the payment to officials. Reports at the time stated that “the family awaited an additional demand for delivery of money and return of Garza with completion of the ransom payment.” However, no further word was ever received. On November 17, 1988, Garza’s body was discovered “badly decomposed” in a sugarcane field near Moore Air Field in Edinburg, according to reports at the time in the Valley Morning Star. The following Wednesday, Garza’s wife identified his body through identification of clothing. Edinburg police also verified identity through dental records. Texas DPS asks anyone with information to call the Crime Stoppers hotline at 1-800-252-TIPS (8477) or submit a tip HERE. Texas Crime Stoppers is offering a cash reward of up to $3,000 to any person who provides information that leads to the arrest of the person/persons responsible for this crime.
CCR: 90-010906
Date Reported: July 31, 1990
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 mile North of Radio Rd on Mccoll East side
L.E.A Hidalgo County Sheriff's Office

CCR: 17-01892
Date Reported: January 14, 2017
VICTIM DETAILS
Name Kim Avila Martinez
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 6217 ITHACA
Donna Texas, 78537
Hidalgo
L.E.A Hidalgo Co. Sherriff'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: March 23, 2016
VICTIM DETAILS
Name Oneida Alanis Balderas Garza
Age 44
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 200th block of Ebony Court
Rio Grande City Texas, 78582
Starr County
L.E.A Rio Grande City Police Department

Cold Case Spotlight

It was around 9:30 am on March 23rd when the bodies of two Rio Grande City CISD employees were found inside the residence of Garza located on the 200th block of Ebony Court. Lourdes M. Elizondo (33) and Oneida Alanis Balderas Garza (44) had been shot execution style with their hands bound. Both women worked in the Business Office of the school district
CCR: 01-25146
Date Reported: November 18, 2001
VICTIM DETAILS
Name Maria Oralia Castro
Age 60
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1/2 Mile East of Filegoria West on Monte Alto
L.E.A Hidalgo Co. Sheriff's Office

CCR: Unknown
Date Reported: July 23, 1989
VICTIM DETAILS
Name John Frank Garcia
Age 37
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Missing Person (Presumed Murdered)
Cause Undisclosed
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Unknown
Edinburg Tx, 78539
Hidalgo County
L.E.A Hidalglo County Sheriff Office