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: 94-022142
Date Reported: April 2, 1994
VICTIM DETAILS
Name Orlando Aguirre
Age 26
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1/4 W. 2 1/2 W
Mission Texas, 78574
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

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: 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: 98-00711
Date Reported: January 12, 1998
VICTIM DETAILS
Name Josefat Rodriguez
Gender Female
Race African American/Black
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location between 5 1/2 and 6 west of 12 north
L.E.A Hidalgo County Sheriffs Office

CCR: Unknown
Date Reported: August 12, 2008
VICTIM DETAILS
Name Manuel Olivarez Jr.
Age 42
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Missing Person (Presumed Murdered)
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Unknown
Rio Grande City TX, 78582
Starr
L.E.A Starr County Sheriff's Office

According to law enforcement sources Manuel was kidnaped possibly from Rio Grande City area during the day in 12-08-2008. As time passes, the investigation leads become fewer. Leads are essential in helping solve a missing person’s case. Do not be afraid to get involved, should know something about this case you can call a Tip Line anonymously with information. Any Tip on evidence or information - regardless you think is significant or not – you should be reported. “If You See Something, Say Something" and submit a Tip Online at https://www.fbi.gov/tips
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: 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: 97-04678
Date Reported: March 31, 1997
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 4/10 mile South of Rancho Blanco on FM 907 west side
Alamo Tx, 78516
Hidalgo
L.E.A Hidalgo County Sheriff's Office

CCR: Unknown
VICTIM DETAILS
Name Efren "Pipo" Quiroz Jr.
Age 33
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Fidencio Castillo
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Expressway 83 and Val Verde Road
Donna Texas, 78537
Hidalgo
L.E.A Donna Police Department

Cold Case Spotlight

DONNA – Police are searching for a 38-year-old suspect involved in a fatal shooting. The incident happened at a Stripes Store on Expressway 83 and Val Verde Road. Donna Police Cpt. Rick Suarez told CHANNEL 5 NEWS 35-year-old Efren Quiroz Jr., of Alamo, was shot Saturday night. He said the suspect, identified as Fidencio Castillo, zeroed in on the victim while he walked out of the store. He fired a couple of shots at Quiroz, hitting him once in the back, according to Suarez. Police issued out a warrant to arrest Castillo on murder charges. Suarez says on Monday, officers and U.S. Marshals searched his Alamo residence. Police say the crime doesn't appear to be random. Both the suspect and victim are believed to have known each other. Authorities are also looking for a 2008 Dodge Ram with license plate number, KCF-3128. If you have any information, you're asked to call Donna Crime Stoppers at 464-8477. If the tip leads to an arrest, you're eligible for a $1,000 reward.
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