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: 17-01-004
Date Reported: January 1, 2017
VICTIM DETAILS
Name Juan Manuel Belmarez
Age 35
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Jose Borrego St and Hwy 107
Edcouch Texas, 78538
Hidalgo County
L.E.A Edcouch Police Department

Cold Case Spotlight

Texas Rangers Lead the Homicide Investigation in the murder of Juan Manuel Belmarez. The murder and shooting death of Juan Manuel Belmarez occur on Reyes St. and South Ave in Edcouch. A white SUV suburban was stopped in the middle of the street with riddle with bullet holes through the front windshields. The murder took place around 7:00 pm on Sunday. The family wants Justice for Juan Belmarez.
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: Unknown
Date Reported: June 5, 2001
VICTIM DETAILS
Name Genaro Melendez
Age 30
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Offense Murder
Cause Gun/Firearm
CASE DETAILS
Status Unsolved
L.E.A Cameron County Sheriff's Dept

Cold Case Spotlight

BROWNSVILLE, Texas (ValleyCentral) — A 30-year-old man survived a kidnapping only to be captured and murdered a few years later, authorities continue to look for his murderer two decades later. As the lone survivor in a drug-related kidnapping, Genaro Melendez believed he was in the clear for years but he was kidnapped again in 2001. Melendez was lured into a vehicle at approximately 2:30 a.m. on June 5, 2001, to never again be seen alive. A few days later Melendez’s body was discovered in an empty field, near Boca Chica Beach. His body was found “tied up and had sustained three shots through the head,” according to Cameron County Sheriff at the time, Conrado M Cantu. Sheriff Cantu told reporters from the Brownsville Herald that Melendez’s body appeared to have been killed “execution-style.” The investigation revealed that Melendez’s murder was drug-related. The Cameron County Sheriffs Office does have a person of interest in this case, however, no arrests have been made and the case remains active. 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: Unknown
Date Reported: March 23, 2016
VICTIM DETAILS
Name Lourdes Elizondo
Age 33
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 and Farm-To-Market Road 755
Rio Grande City Texas, 78582
Starr County
L.E.A Rio Grande City Police Department

Cold Case Spotlight

Very little information regarding motive has been released since the discovery of two Rio Grande City ISD employees, Wednesday morning, March 23, 2016. The victims, identified as Oneida Alanis Balderas Garza and Lourdes M. Elizondo(Luna) were found bound, and shot in the head “execution style,” this according to from Law Enforcement officials, who arrived on scene shortly after 9:30 a.m.
CCR: Unknown
Date Reported: May 12, 2005
VICTIM DETAILS
Name Reynaldo Castaneda
Age 52
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Mile 10 N and Mile 1 W
Mercedes Texas, 78570
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

Cold Case Spotlight

When deputies arrived, they discovered the bodies of 52-year-old Reynaldo Castaneda and 74-year-old Alberto Castaneda. Newspaper archives indicate that the men were a father and his son. 74-year-old, Alberto Castaneda At the time, authorities said there was clear evidence of foul play. In January 2021 the Hidalgo County Sheriff’s Office asked anyone with information about the double homicide to come forward.
CCR: Unknown
Date Reported: March 13, 1993
VICTIM DETAILS
Name Victoria Ybarra
Age 29
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Kenyon Rd & Mile 19
Edinburg TX, 78539
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

Cold Case Spotlight

Two decades have passed since a devoted mother of three was found dead in a field near the city of Edinburg. Her oldest daughter was only 7 years old at the time of her death. Victoria Ybarra was described as a beautiful 29-year-old who lived in Edinburg. But her death remains unsolved. The year was 1993. On March 13, two teenagers were driving around Kenyon Road and Mile 19 in the city of Edinburg. While hunting, the two boys discovered Ybarra’s body in a field and called authorities.
CCR: 91-01339
Date Reported: January 28, 1991
VICTIM DETAILS
Name Unknown
Gender Male
Race Caucasian/White
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
L.E.A Hidalgo County Sheriff's Office

CCR: Unknown
Date Reported: April 29, 1991
VICTIM DETAILS
Name Guadalupe Lozano III
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1 mile East of the Village Hut Store on Highway 4
Brownsville Texas, 78520
Cameron
L.E.A Cameron County Sheriff's Office

Cold Case Spotlight

BROWNSVILLE, Texas (ValleyCentral) — A young man’s Saturday night out took a turn for the worst as his body was discovered a few hours later “bullet-riddled” and left for passerby’s to find. 30 years later, Guadalupe Lozano III’s murder remains unsolved with no arrests. Like many in their youth, Lozano hit the town for a night out on April 27, 1991. Lozano was last seen Sunday early morning around 2 a.m. getting into a Mercury Cougar with Mexican licenses plates along with 3 other men. Leaving a popular location at the time, the Casa Blanca Night Club in Brownsville, Lozano was never seen by the public after calling his evening a night with the other men. Cameron County Sheriff Deputies reported the body was found along Highway 4 at around 7:30 a.m. April 29, according to a report from the Valley Morning Star. Lozano’s body was discovered approximately a mile east of the Village Hut Store on Highway 4, according to a release from Cameron County Sheriff Eric Garza. Cameron County Sheriffs Office spokesperson told the Valley Morning Star that Lozano’s body was discovered with 13 bullet wounds to his head. Lozano’s body was identified through his numerous tattoos, one including his last name. Investigators later identified one of the three men as Bernabe Sosa, but have not made any arrests in the case. This case remains an open investigation. 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: 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
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.