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: 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: 02-15529
Date Reported: June 27, 2002
VICTIM DETAILS
Name John Doe 13
Gender Unknown
Race Unknown
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location w. Iowa Rd on 5 mile line
Mission Texas, 78503
Hidalgo
L.E.A HCSO

CCR: Unknown
Date Reported: June 16, 2011
VICTIM DETAILS
Name Roman Ramirez Jr.
Age 22
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Offense Murder
Cause Gun/Firearm
CASE DETAILS
Status Unsolved
Incident location Starr County
L.E.A Starr County Sheriff's Office

Cold Case Spotlight

Investigators with the Starr County Special Crimes unit worked lead after lead trying to figure out who murdered Roman Ramirez, Jr. But starting with the New Year, those leads have gone cold. Investigators told Action 4 News that its TMs been a seven long months of chasing leads that went nowhere. Months of unanswered questions have also taken their toll on the family. Ramirez was shot and left for dead on the side of La Blanca Road in the Guerra Garza Subdivision on a sunny June 2011 afternoon. Investigators said it was an area that Ramirez would frequently travel walking up and down La Blanca Road. They said with no witnesses coming forward, their investigation has come to a standstill. Authorities are hoping a cash reward will bring someone forward someone who can help bring closure to a grieving family. Starr County Sheriff TMs Office Investigator David Ibarra spoke to Action 4 News about the case. His family reaches out to us on a regular basis, Ibarra said. We’d really like to help them out by putting the person or persons responsible behind bars.”
CCR: 14-38057
Date Reported: September 15, 2014
VICTIM DETAILS
Name John Doe 1
Gender Unknown
Race Unknown
SUSPECT DETAILS
Name unknown
Offense Murder
Cause Blunt Force
Location unknown
CASE DETAILS
Status Unsolved
Incident location 8800 Tex-Mex
Edinburg Texas, 78539
Hidalgo
L.E.A Hidalgo Co. Sherriff's Office

CCR: 92-11150
Date Reported: May 25, 1992
VICTIM DETAILS
Name Jesus J. Sosa
Age 37
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1/4 North of Exp. 83 on Valverde Rd.
Donna Texas, 78537
Hidalgo
L.E.A Hidalgo Co. Sherriff's Office

CCR: Unknown
Date Reported: June 14, 1998
VICTIM DETAILS
Name Maria Marisella Gonzalez
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location Hudson Road
San Benito Texas, 78586
Cameron
L.E.A Cameron County Sheriff's Office

Cold Case Spotlight

HARLINGEN, Texas (ValleyCentral) – A woman well known by the community disappeared with no trace only for her flesh-eaten body to be discovered days later in a resaca, leaving authorities with no leads. 23 years later, the murder of Maria Marisella Gonzalez remains unsolved. Also known as “Marcie,” Gonzalez was a dancer at Crazy Horse Topless Bar. Gonzalez was last seen spending time in Harlingen’s La Placita district on June 8, 1998. Witnesses told authorities that Gonzalez was seen entering a vehicle with a man. The dancer was discovered dead in a resaca near Hudson Road outside San Benito on June 14, 1998, according to the Cameron County Sheriffs’ Office. Gonzalez’s body was found with multiple skull and facial fractures with her face flesh eaten away by “whatever lies in the murky waters.” The 35-year-old woman was identified as “Marcie” through her clothing, jewelry, and the tattoo of a rose on her right shoulder. According to an autopsy report released at the time, Gonzalez’s cause of death was determined to be three blows to the head and face delivered with a blunt object. Preliminary pathology reports ruled her death as a homicide. CCSO Investigator at the time Domingo Diaz told reporters that the agency has questioned all of Gonzalez’s acquaintances but had no leads. Diaz stated that he was sure that “someone saw… something.” As a rise in murders spiked during the time of Gonzalez’s death, reporters spoke with other county officials. Hidalgo County District Attorney Rene Guerra emphasized the importance of witnesses, stating murders like Gonzalez’s, that lack witnesses tend to go unsolved. This case remains an open investigation. Individuals with any information on this case are asked to call the Cameron County Crime Stoppers at their hotline: (866)-350-5551 or (956)-350-5551.
CCR: Unknown
Date Reported: July 14, 2001
VICTIM DETAILS
Name Denise Villarreal
Age 16
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Offense Murder
Cause Unknown
CASE DETAILS
Status Arrest Made
L.E.A Cameron County Sheriff's Office

Cold Case Spotlight

On 07-14-2001, at approximately 2:45 PM, the Cameron County Sheriff’s Office received a call regarding a deceased body found one-half mile east of the Shrimp Basin off of State Highway 48 in Cameron County, Texas. The victim was later identified as Denise Villarreal. At the time of her death, Villarreal was 16 years old and listed as a runaway.
CCR: 01-7299
Date Reported: April 8, 2001
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 3 1/2 West Road and 19 North Road
Elsa Tx , 78543
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

CCR: 93-6243
Date Reported: March 14, 1993
VICTIM DETAILS
Name Benito Garza
Age 82
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident location North of the radiostation on "I" road
L.E.A Hidalgo County Sheriff's Office