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: 17-29602
Date Reported: July 26, 2017
VICTIM DETAILS
Name John Doe 12
Gender Female
Race Unknown
SUSPECT DETAILS
Name Aristeo Garcia Cervantes
Offense Murder
Cause Unknown
CASE DETAILS
Status Arrest Made
Incident location 8029 Dallas St.
Edcouch Texas, 78538
Hidalgo
L.E.A HCSO

Cold Case Spotlight

Hidalgo County Sheriff Eddie Guerra announced Thursday that a 40-year-old Edcouch man recently confessed to killing a woman and dumping her body in a septic tank. Aristeo Garcia Cervantes, 40, of Edcouch confessed to killing a woman and hiding her body in a septic tank, Guerra said Thursday morning during a news conference at the Sheriff’s Office. Cervantes said he killed the woman roughly 10 to 12 years ago and didn’t remember her name, Guerra said, adding that investigators believe the murder occurred in 2004... The Sheriff’s Office started investigating the murder on July 26, 2017, when someone called to report human remains in a septic tank, Guerra said. Investigators went to a home near Edcouch, where Cervantes’ daughter and her boyfriend said they’d been having problems with the septic tank. When the boyfriend and another man attempted to fix the problem, they found a woman’s boot in the septic tank, Guerra said. After they removed the boot, they found a large bone — and called the Sheriff’s Office. Investigators sent the body to a private forensic lab in Virginia for DNA testing, Guerra said. The Sheriff’s Office researched missing women and welfare concerns during the time period, attempting to identify the woman. Investigators are currently talking with a family.
CCR: 90-010906
Date Reported: July 31, 1990
VICTIM DETAILS
Name Leo Cadena
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1 block N of Radio Rd. on McColl East side
Pharr Texas, 78577
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: 04-01590
Date Reported: January 19, 2004
VICTIM DETAILS
Name Hugo Cabrera
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 3815 La Homita Rd
Mission TX, 78572
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: 13-55130
Date Reported: October 25, 2013
VICTIM DETAILS
Name Jolissa "Socorro" Rangel
Age 20
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name 3 Unknown Suspects
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1702 S Closner Blvd
Edinburg Texas, 78539
Hidalgo County
L.E.A Edinburg Police Department

Cold Case Spotlight

On Friday, October 25, 2013, around 9:30 pm Jolissa ‘Socorro” Rangel a 20-year-old female was found shot to death inside her apartment located 2400 block of Kimberly Lane in Edinburg, Texas with a gunshot wound to her heart. Rangel lived with her 2-year-old son and her sister. No justice, No Peace! The family is offering a cash reward of up to $5,000 to any person who provides information that leads to the arrest of the person/persons responsible for the murder of Jolissa Rangel.
CCR: 11-24868
Date Reported: June 14, 2011
VICTIM DETAILS
Name Manuel Alberto Luna
Age 28
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unkown
CASE DETAILS
Status Unsolved
Incident location FM 2812
Edinburg Texas, 78541
Hidalgo
L.E.A Hidalgo Co. Sherriff's Office
CCR: 95-10363
Date Reported: April 18, 1995
VICTIM DETAILS
Name Serge Luis Trevino
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Knife/Stabbing
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 6 3/4 N. Shary Rd.
Mission Texas, 78574
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

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: Unknown
Date Reported: October 13, 2018
VICTIM DETAILS
Name Irene Ozuna
Age 45
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Mario Lozano Lemus
Offense Murder
Cause Gun/Firearm
Location Mexico
CASE DETAILS
Status Unsolved
Incident location 1300 block of North Carolina Street in Alton
Penitas TX, 78572
Hidaglo
L.E.A Hidalgo County Sheriff's Office

Cold Case Spotlight

According to officials, 24-year-old Mario Lozano is the main suspect in the death of his mother in law 45-year-old Irene Ozuna and 24-year-old Maria Angelita Vasquez, his sister-in-law.Vasquez’s husband who chose to remain anonymous, says he witnessed the incident. He adds Lozano has been part of their family for a few years and this situation comes as a shock. The witness says that on Saturday night, the suspect’s wife called her sister and mother asking for help because she was having a fight with her husband at their home. The victim’s husband adds his mother in law was shot in the head inside the house and died instantly. His wife also received a shot to the head and died while waiting for medical attention. Authorities are still searching for Lozano. If you have any information on his whereabouts contact Hidalgo County Crime Stoppers at (956) 668-8477 Should your tip lead to an arrest, apprehension or prevention of a crime, you may be eligible for a cash reward up to 1,000 Dollars
CCR: 93-6128
Date Reported: March 13, 1993
VICTIM DETAILS
Name LaVern Cross
Age 73
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Offense Hit and Run
Cause Beaten/Battered
CASE DETAILS
Status Unsolved
Incident location S/W Corner of Chapin Rd
Edinburg Texas, 78539
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: 03-18179
Date Reported: July 29, 2003
VICTIM DETAILS
Name John Doe 14
Gender Unknown
Race Unknown
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unkown
CASE DETAILS
Status Unsolved
Incident location 8200 W. Exp. 83
Palmview Texas, 78572
Hidalgo
L.E.A HCSO