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
VICTIM DETAILS
Name Nora Conde Villalobos
Age 49
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Juan Manuel Tobias
Offense Murder
Cause Unknown
CASE DETAILS
Status Arrest Made
Incident location FM 1015 and Nittler Road
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

Cold Case Spotlight

While many take the time on Veterans Day to honor those who served, one Valley family continues seeking justice for their beloved veteran. Army veteran Nora Conde Villalobos was only 49 years old when her body was discovered in a canal off FM 1015 and Nittler Road in Hidalgo County in 2017. The discovery prompted the arrest of her boyfriend, Juan Manuel Tobias, on murder charges. More than four years later, her family continues fighting for justice, adding that days like today bring back memories of their beloved veteran. "Her laugh— it was a contagious laugh. You knew that laugh anywhere," said Michelle Rodriguez-Zamarron, Villalobos' niece. "She didn't care who you were. She didn't care about your past. She didn't care if you had money. She didn't care if you were walking off the street. She treated you like anybody else." Rodriguez-Zamarron says her aunt was the kind of person who made everyone feel like they mattered. "We've always wanted from the beginning is just justice," Rodriguez-Zamarron. "Justice on her behalf since she is no longer here. We, as her family, will continue advocating for her." Rodriguez-Zamarron says the family stays strong by focusing on the positive and remembering the sacrifices Villalobos and all veterans made. "Her memory lives on every day," Rodriguez-Zamarron. "Just because she's gone, she's not forgotten. Today is just another day that we honor her and every veteran out there that gave selflessly, enlisted, and served our country." country."
CCR: 92-23522
Date Reported: October 19, 1992
VICTIM DETAILS
Name Unknown
Gender Unknown
Race Unknown
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident location south side of bus. 83 on Hutto Rd.
L.E.A Hidalgo County Sheriff's Office

CCR: Unknown
Date Reported: August 21, 2011
VICTIM DETAILS
Name Antonio Villegas, Jr
Age 20
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Missing Person (Presumed Murdered)
Cause Undisclosed
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Unknown
Mission Texas, 78572
Hidalgo County
L.E.A Mission Police Department

Cold Case Spotlight

Antonio "Tony" Villegas Jr. Age: 20 Years Old Height: 5'6" Weight: 175 lbs. Last seen: Went Missing on Sunday, August 21, 2011, in South Mission. He was last seen wearing a black shirt, khaki shorts, and White Nike Sneakers. He has tattoos, including one that says "Death Before Honor" on his calf. Villegas, 20, disappeared on Aug. 21, 2011, left his home around 4 a.m. and wasn’t seen or heard from again until 9 a.m. Investigators found the clothes of a man who may have been kidnapped by illegal immigrants in Mission. The search for 20-year-old Antonio Villegas, Jr. continues after he did not return to his home in Alton early this week. Mission police are investigating the case while authorities, family members and volunteers search an area of brush in a southern part of the city. Authorities found Villegas' clothes on Tuesday morning. They are still treating the search as a rescue mission. Tong dial 911 at least 15 times on Sunday. The Alton man claimed to have been forced or abducted by a group of illegal immigrants. Anyone with information about Villegas' whereabouts is asked to call Mission Crime Stoppers at (956) 581-8477.
CCR: 11-39560
Date Reported: September 19, 2011
VICTIM DETAILS
Name Artemio Olivares Garza
Age 49
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location N. of Exp. on El Pinto W. on La Pinta
Sullivan City Texas, 78595
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: 89-12766
Date Reported: August 14, 1989
VICTIM DETAILS
Name Jesus Manuel Gonzalez
Age 28
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1/4 Mile E of FM 3071 on SH 107
Elsa Texas, 78538
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: Unknown
Date Reported: May 7, 2003
VICTIM DETAILS
Name Gregory Allen Meredith
Age 43
Gender Male
Race Caucasian/White
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Old Port Isabel Road and Highway 100
Cameron County
L.E.A Cameron Country Sheriff's Office

Cold Case Spotlight

CAMERON COUNTY, Texas (ValleyCentral) — Murder remains unsolved after 18 years since a body of an almost unidentifiable body was discovered in a canal. Gregory Allen Meredith, 43, body was discovered floating in a canal by a fisherman on May 7, 2003. Cameron County Sheriffs deputies responded to the scene located along Old Port Isabel Road and Highway 100 at 6:45 p.m. Deputies responded after receiving a call from the Laguna Vista Police Department. Officials could not immediately identify Meredith’s body due to severe water damage as well as the fact that his teeth had all been removed, making it impossible to check dental records. Meredith’s body was believed to have been in the canal for two to three days. Meredith’s body was initially reported to have two gunshot wounds, one behind his ear and another at the base of his skull. A preliminary autopsy later revealed that Meredith had eight bullets lodged in his skull. Cameron County Sheriffs Spokeswoman at the time, Elizabeth Anguiano told Valley Morning Star reporters that Meredith was identified as the Federal Bureau of Investigation was able to “get two prints from him.” Fingerprints matched the criminal file of Gregory Allen Meredith out of Bastrop, located southeast of Austin. Authorities told reporters they did not believe the murder was the result of a robbery as Meredith had $115 dollars in his pocket. According to CCSO Meredith was believed to have been involved with a small organization that trafficked meth from Austin. CCSO does have a suspect, however, no arrests have been made. This investigation is ongoing. 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: 90-13742
Date Reported: September 18, 1990
VICTIM DETAILS
Name Unknown
Gender Male
Race Unknown
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Arrest Made
Incident location 2 1/2 miles north FM 492
L.E.A Hidalgo County Sheriff's Office

CCR: 91-15956
Date Reported: September 18, 1991
VICTIM DETAILS
Name Unknown
Gender Unknown
Race Unknown
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1/4 mile West of FM2521 on Military Rd
L.E.A Hidalgo County Sheriff's Office

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