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: August 25, 2002
VICTIM DETAILS
Name Enedelia Benavides
Age 26
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 6315 N. Gold Avenue
Trailer House located in the 6300 block of Gold Avenue
Edinburg Texas, 78539
Hidalgo County
L.E.A Edinburg Police Department

On August 25, 2002, at approximately 2:00 am the suspect(s) enter the residence and fatally shot Michael and Enedelia. The killings mystified Edinburg Police Department investigators and who have no clues who committed the murders of Jason Buckelew and his common-law wife, Enedelia Benavidez, 26, who were from Houston, Texas. They both were shot in the head located at 6315 Gold Avenue in Edinburg, Texas. Jason died shortly after at the Valley Baptist Medical Center in Harlingen, Texas and she died in San Antonio Texas Hospital. There was a third victim, Esmeralda Reyes, 26, who survived and remained in critical condition at the San Antonio hospital with a gunshot wound to the head. BENAVIDES and BUCKELEW were deaf and mute.This case remains unsolved. No Justice. No Peace.
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: Unknown
Date Reported: April 26, 2006
VICTIM DETAILS
Name Efrian Garcia
Age 55
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Reynosa Mexico
CASE DETAILS
Status Unsolved
Incident location Unknown
Reynosa State of Tamaulipas, 88500
Unknown
L.E.A Mexican Police

Efrain Garcia was murder on April 26, 2006, in Reynosa Mexico after receiving a call for his pest control business. He and a coworker responded to the call for service as they approach the location in entering a Cul-de-sac in a business district in Reynosa Mexico. His co-worker jumped out of the truck and fled the scene. As shots were fired striking Efrain multiple times killing him instead. No Justice. No Peace.
CCR: Unknown
Date Reported: October 18, 2017
VICTIM DETAILS
Name Rosvel Garza
Age 19
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Missing Person (Presumed Murdered)
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident location La Sagunada Road near Farm-to-Market Road 755
Rio Grande City Texas, 78582
Starr County
L.E.A Starr County Sheriff’s Office

Cold Case Spotlight

The Starr County Sheriff’s Office along with Texas Rangers are asking for the public’s help in locating two missing brothers. On, Mario Alberto Garza, 17, and Rosvel Garza, 19 brothers were reported missing by their family. The two brothers were last seen by friends on October 18, 2017, in a gray Dodge Dakota extended cab pickup. Through the investigation, it was discovered that the vehicle, 2005 Dodge Dakota, was found abandoned and burnt in the woods near La Sagunada Road near Farm-to-Market Road 755. Anyone with information or knows the whereabouts of Mario Alberto Garza and Rosbel Garza are encouraged to contact the Starr County Sheriff’s Office at (956) 487-5571.
CCR: 17-31402
Date Reported: August 8, 2017
VICTIM DETAILS
Name Irene Espinosa
Age 52
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Alvaro Medrano
Offense Murder
Cause Gun/Firearm
CASE DETAILS
Status Arrest Made
Incident location 24576 N Sunflower Rd
Edinburg Texas, 78539
L.E.A HCSO

Cold Case Spotlight

A 47-year-old man has been charged with capital murder after authorities say he confessed to shooting and killing two women in rural Edinburg on Tuesday evening. Alvaro Medrano, 47, of Edcouch was charged with capital murder, a capitol felony, on Wednesday. A Hidalgo County Justice of the Peace set bond at $2 million. At about 6:48 p.m. on Tuesday, Sheriff’s deputies responded to an area near Sunflower Road in rural Edinburg in “reference to a 911 caller reporting that he had shot his wife“, according to a news release from the Hidalgo County Sheriff’s Department. Deputies located Medrano as he was walking away from the location, and detained him without incident near Farm-to-Market Road 493 and Farm-to-Market Road 2812, according to the news release. When deputies responded to the Medrano’s residence, they found two female bodies inside of a vehicle with gunshot wounds to the head. The bodies were identified as Medrano’s wife, 30-year-old Olga Espinosa, and Medrano’s mother-in-law, 52-year-old Irene Espinosa, according to the news release. Hidalgo County Sheriff’s Office investigators and Crime Scene Specialists collected evidence from the scene, including the handgun that was used in the shootings, according to the news release. After an investigation, the Hidalgo County Sheriff’s Office “learned that Medrano had streamed his confession on Facebook Live, while walking away from the crime scene,” according to the news release. Investigators are working with the Facebook Law Enforcement Compliance Department to preserve the livestream as evidence. During an interview, Medrano confessed to killing his wife and mother-in-law in a domestic disturbance due to infidelity, according to the news release. The Hidalgo County Sheriff’s Office encourages anyone who may be a victim of domestic violence to seek help from their respective law enforcement agencies.
CCR: 12-13023
Date Reported: April 3, 2012
VICTIM DETAILS
Name Sandra Alcazar
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 10680 N. La Homa
Mission TX, 78572
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: 97-14339
Date Reported: September 18, 1997
VICTIM DETAILS
Name Unknown
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident location East of FM 1423
Donna Tx, 78537
L.E.A Hidalgo County Sheriff's Office

CCR: 14-38057
Date Reported: September 15, 2014
VICTIM DETAILS
Name John Doe 2
Gender Unknown
Race Unknown
SUSPECT DETAILS
Name unknown
Offense Murder
Cause Blunt Force
Location unknown
CASE DETAILS
Status Unsolved
Incident location 8800 Tex-Mex
Edinburg Texas, 78539
L.E.A Hidalgo Co. Sherriff's Office

CCR: Unknown
Date Reported: December 23, 2008
VICTIM DETAILS
Name Walton 'Pinky" Sanchez
Age 48
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Joanna Avenue and 22nd Street
Mission Texas, 78572
Hidalgo County
L.E.A Mission Police Department

Cold Case Spotlight

According to his sister Liz Garza, his brother Pinky was fatally shot outside a neighbor's house Tuesday while he was drinking beer with a friend. Walton "Pinky" Sanchez, 48, was sitting under a carport at the corner of Joanna Avenue and 22nd Street when a COPPER car pulled up and the driver called him over. Sanchez approach the vehicle had a brief conversation with someone inside and then was fatally shot in the chest. Police and friends suspect Sanchez knew his assailant(s). He was born July 8, 1960, the baby of the family who grew up playing baseball like his father, Eduardo Sanchez, had before him. His father also had a knack for acquiring nicknames, as he was known as “El Zurdo” in addition to “Lefty.” The case remains unsolved. No Justice. No Peace.
CCR: 02-9498
Date Reported: April 21, 2002
VICTIM DETAILS
Name Maria Evangelina Zavala
Age 30
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Beaten/Battered
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1 mile N of FM 1925 on Big Five Rd.
Edinburg TX, 78539
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

Maria was murdered along with two others on April 21st, 2002. This case remains unsolved, 2 decades have passed and nothing has been done. No Justice, No Peace.