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: July 16, 2017
VICTIM DETAILS
Name Nahomi Rodriguez
Age 19
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 602 N. 77
Sunshine Strip Harlingen, Texas, 78550
Cameron
L.E.A Harlingen Police Department

Cold Case Spotlight

On July 16, 2017, Nahomi Rodriguez, a 19-year old, went missing from McDonald’s in Harlingen, Texas. She was last seen alive entering a light colored early 2000s Ford Escape on surveillance video outside her work at a McDonald’s in Harlingen in July 2016. About one year later her skeletal remains were found in Rio Hondo in April 2017. Investigators believe that the same person and vehicle are captured on video from a camera inside the fast food restaurant. A man in a white cap with a black shirt pulls up to the drive-through window. Nahomi can be seen giving the unknown man a fist-punch. The Harlingen police department, law enforcement partners, and community partners are offering $25,000 for information leading to the arrest and conviction of the person or persons responsible for Naomi's disappearance and death.
CCR: Unknown
Date Reported: December 21, 1989
VICTIM DETAILS
Name Efrain Garcia Villarreal
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Offense Murder
Cause Blunt Force
CASE DETAILS
Status Unsolved
L.E.A Cameron County Sheriff's Dept

Cold Case Spotlight

BROWNSVILLE, Texas (ValleyCentral) — A night out takes a turn for the worse after a man’s body was discovered beaten the morning after. 32 years later, Efrain Garcia Villarreal’s murder remains unsolved with no arrests. Villarreal was last seen on December 21, 1989, around 2 a.m. at the Taconazo Bar located in Cameron Park. According to the Cameron County Sheriffs Office, Villarreal was reported to have last been seen with a man known as “El Shorre” or the “Short One.” As the night came to an end and a new day began, Villareal’s body was found on Salida Del Sol Road. The investigation revealed that Villareal had been beaten to death with a heavy type of object that was used to strike him several times. Reporters at the time attempted to contact the Cameron County Sheriffs Office for more information but were not successful. This investigation 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: 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: May 23, 1990
VICTIM DETAILS
Name Laura Guerra
Age 22
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1111 W. Main Street.
RIO MOTEL
Rio Grande City Texas, 78582
Starr County
L.E.A Starr County Sheriff's Office

Cold Case Spotlight

On May 23rd, 1990, the dead body of Laura Guerra,22, was found in a wooded area across the road from the Rio Motel in Rio Grande City. The RIO MOTEL is located at 1111 W. Main Street. Investigators believe that Guerra was murdered at another location, possibly at the motel, and that her body was dumped in the wooded area. Autopsy results indicate that Guerra was killed three days earlier by a gunshot wound to the head. Several clues were followed, but the case went cold. Texas Rangers and the Starr County Sheriff’s Office have reopened this case, and are seeking the public’s help for information to help identify Guerra’s killer. Investigators believe that a possible witness may have information on this crime, and are asking for the public’s help in identifying a person known in the area, in 1990, known as "Gaston Garza," or "Mariano".
CCR: Unknown
Date Reported: January 22, 1993
VICTIM DETAILS
Name Yolanda Moya
Age 33
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location unknown
CASE DETAILS
Status Unsolved
Incident location 824 Louisiana Ave.
Weslaco Texas, 78596
Hidalgo County
L.E.A Weslaco Police Department

Yolanda Moya was just 33 years-old who failed to report to work at Neunanas & Company local farm company in the early morning of January 22, 1993. A family member went to her new house located at 824 S. Louisiana Avenue looking for her. She was inside the home with a gunshot wound to her chin/neck area, and her body was half burned. She was doused in gasoline and set afire. No Justice. No Peace.
CCR: 99-15473
Date Reported: September 14, 1999
VICTIM DETAILS
Name unknown
Age 33
Gender Male
Race Caucasian/White
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Arrest Made
Incident location North of expressway 83 on old Post Office Road
sullivan City Tx, 78595
L.E.A Hidalgo County Sheriff's Office

CCR: Unknown
VICTIM DETAILS
Name Alfredo Garcia Brito
Age 34
Gender Male
Race African American/Black
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Brownsville Texas, 78520
Cameron
L.E.A Cameron Co. Sheriff's Office

Cold Case Spotlight

The body of a 34-year-old man was found with gunshot wounds in the trunk of a car, 22 years later his murder remains unsolved. Credit: Cameron County Sheriff’s Office Alfredo Garcia Brito, 34, was reported missing to the Brownsville Police Department on Saturday, May 22, 1999, by his mother. On Sunday, the Cameron County Sheriffs’ office came across an abandoned car, a White Chevrolet Celebrity, on the outskirts of Brownsville. The abandoned car was later towed and placed in an impound lot. The owner of Raymond’s Wrecker reported a “foul unbearable smell” coming from the car on May 26, 1999, according to a release from the Cameron County Sheriffs Office.
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.
CCR: 2014-00008696
Date Reported: February 4, 2014
VICTIM DETAILS
Name Arturo Hinojosa
Age 32
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name 23-year-old Joseph Espinoza 23-year-old Hector Nicolas Medina-Castillo and Luz Aurora Rivera-Ibarra
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 4800 block of La Vista Avenue
McAllen Texas, 78501
Hidalgo County
L.E.A McAllen

Cold Case Spotlight

On Authorities are asking for the public's help in finding three people who have been identified as suspects in connection to a deadly weekend home invasion in McAllen. A home invasion off the 4800 block of La Vista Avenue left Arturo Hinojosa and David Means dead on Saturday night. McAllen police reported on Tuesday morning that three suspects have been identified. Investigators are looking for 23-year-old Joseph Espinoza on murder and aggravated robbery charges. Espinoza was last seen driving a 2008 Chevrolet Tahoe. McAllen police also reported that 23-year-old Hector Nicolas Medina-Castillo is also wanted on murder and possession of marijuana charges. A third suspect identified as 23-year-old Luz Aurora Rivera-Ibarra is wanted on a possession of marijuana charge. Investigators say two more suspects only known by their nicknames "El Cholo" and "Boxer" still need to be identified. Anyone with information about the suspects or the case is asked to call McAllen Crime Stoppers at (956) 687-TIPS or (956) 687-8477
CCR: Unknown
Date Reported: May 12, 2005
VICTIM DETAILS
Name Alberto Castaneda
Age 74
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.