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: 97-04678
Date Reported: March 31, 1997
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 4/10 mile South of Rancho Blanco on FM 907 west side
Alamo Tx, 78516
Hidalgo
L.E.A Hidalgo County Sheriff's Office

CCR: 04-01590
Date Reported: January 19, 2004
VICTIM DETAILS
Name Eluina Calderon Ruiz
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 12 1/2 NW on Mile 12
Mission TX, 78572
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: 94-15557
Date Reported: June 15, 1994
VICTIM DETAILS
Name Unknown
Gender Unknown
Race Unknown
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Unknown
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1/8 mile west of mile 2 east on FM 2629 north
L.E.A Hidalgo County Sheriff's Office

CCR: 96-24404
Date Reported: August 24, 1996
VICTIM DETAILS
Name Jose Guadalupe Salinas
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Beaten/Battered
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 1/4 South of FM 2221 (HWY 107) o5n Iowa Rd
Mission Texas, 78572
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: Unknown
Date Reported: July 29, 2005
VICTIM DETAILS
Name Ruben “Yiyo” Tarin de Patino
Age 21
Gender Transgender
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Hit and Run
Cause Beaten/Battered
Location Unknown
CASE DETAILS
Status Unsolved
Incident location E. Wisconsin Rd.
Edinburg Texas, 78539
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

Cold Case Spotlight

August marks 15 years since Ruben “Yiyo” Tarin de Patino was found murdered. Yiyo, 21, was found dead East of Wisconsin Road in the city of Edinburg in 2005. “He was found burned,” said Hermelinda Chavez with the Hidalgo County Major Crimes Unit. Yiyo was described by family and friends as confident and proud. “She was described as a person who didn’t like to hide her lifestyle,” said Chavez. “She was never ashamed of how she dressed and she was very outgoing with a lot of friends.” Yiyo was last seen by her mother on July 27. She had met several friends and her sister during the day and assisted another friend with car trouble. Yiyo came home and told her mother she was meeting yet another friend, this was around midnight. “She would visit a lot of nightclubs around the area, McAllen and Edinburg,” said Chavez. “She was not aggressive but definitely defended herself.” Chavez added all of the friends that Yiyo met on July 27 were interviewed and had alibis. Investigators and family never confirmed who she had met, according to Chavez. “Family never knew who she met, it was never confirmed,” said Chavez.
CCR: 06-22986
Date Reported: July 3, 2006
VICTIM DETAILS
Name Juan Alvarado
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Blunt Force
Location Unknown
CASE DETAILS
Status Unsolved
Incident location South of Bus 83 on Scott Lane West on Daniel
Mission TX, 78572
Hidalgo
L.E.A Hidalgo Co. Sheriff's Office

CCR: Unknown
Date Reported: August 25, 2002
VICTIM DETAILS
Name Michael Buckelew
Gender Male
Race Caucasian/White
SUSPECT DETAILS
Offense Murder
Cause Gun/Firearm
CASE DETAILS
Status Unsolved
L.E.A Edinburg Police Department

Cold Case Spotlight

EDINBURG, Texas (ValleyCentral) — Michael Jason Buckelew and Enedelia Benavides, a deaf couple who met in college, were murdered during a trip to Edinburg. Two days after the 20-year anniversary of the murder, the case remains unsolved. ValleyCentral spoke with officers with the Edinburg Police Department, the lead agency in the investigation, to get more According to police, both Buckelew and Benavides were deaf. They met in college and had a group of friends that were also deaf. In August 2002, the two, who were living in Houston at the time, made an “abrupt” trip to Edinburg to visit family. On the night of Aug. 25, 2002, the two decided to attend a quinceañera with friends part of a deaf community.information on the case. Buckelew and Benavides left the quinceañera, and arrived back at a trailer home located at 6300 block of Gold Avenue in Edinburg. Within minutes of arriving back at the residence, a man covering his face with a bandanna made a forcible entry into the residence. The man shot Buckelew, Benavides and a third female victim. “This is more than likely a targeted incident,” Oscar Trevino, Edinburg PD Lt., said. “Somebody had to have followed them home.” A fourth victim at the residence, another female, was hidden behind a door unbeknownst to the shooter, police believe. She was not harmed in the shooting. According to police, both Buckelew and Benavides died as a result of the shooting. One died at the scene, and the other died at a hospital. The third victim in the shooting sustained “very serious injuries” and was airlifted to a military hospital for treatment. A witness that lived in the area told investigators they heard shots nearby. They then looked out the window and caught a glimpse of the suspect. The description of the suspect remains vague. He is described as an average-sized male, who had his face covered during the attack. He was said to be wearing dark clothing and driving a black passenger vehicle that appeared to be new, with shiny rims. The witness saw the suspect as he left the residence, and ran to the awaiting car. It is unknown whether there were others in the vehicle. When asked about the scene of the crime, authorities stated it seemed like a fast attack. It is not known whether anything was taken from the residence, but the surviving witness said everything happened quickly. The investigation of this case was particularly complex because the network of friends and associates that the victims had were also deaf, police said. Special arrangements needed to be made, including having interpreters available during the course of the interviewing process. Detectives with the Edinburg Police Department received assistance from the Texas Rangers. The agencies went to different parts of Texas where they conducted more interviews and executed search warrants with the attempt to find new evidence. “We exhausted everything,” Treviño said. Police said they continue to keep in contact with the family and remain ready for any kind of lead. “As law enforcement, as humans, we want to give them closure,” Gabriel Vela, Edinburg PD Lt., said. “Some time has passed but were more than willing to receive any type of information — and we will follow up on it as if it was the day after the incident.” Those with information on this case are asked to contact the Edinburg Police Department at (956) 289-7700, or the Edinburg Crime Stoppers at (956) 383-TIPS (8477).
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: Unknown
Date Reported: August 25, 2002
VICTIM DETAILS
Name Enedelia Benavides
Age 26
Gender Female
Race Hispanic/Latino
SUSPECT DETAILS
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
CASE DETAILS
Status Unsolved
Incident location 6315 N. Gold Avenue
Trailer House located in the 6300 block of Gold Avenue
Edinburg Texas, 78539
Hidalgo County
L.E.A Edinburg Police Department

On August 25, 2002, at approximately 2:00 am the suspect(s) enter the residence and fatally shot Michael and Enedelia. The killings mystified Edinburg Police Department investigators and who have no clues who committed the murders of Jason Buckelew and his common-law wife, Enedelia Benavidez, 26, who were from Houston, Texas. They both were shot in the head located at 6315 Gold Avenue in Edinburg, Texas. Jason died shortly after at the Valley Baptist Medical Center in Harlingen, Texas and she died in San Antonio Texas Hospital. There was a third victim, Esmeralda Reyes, 26, who survived and remained in critical condition at the San Antonio hospital with a gunshot wound to the head. BENAVIDES and BUCKELEW were deaf and mute.This case remains unsolved. No Justice. No Peace.
CCR: 17-02143
Date Reported: January 15, 2017
VICTIM DETAILS
Name Javier Olvera Jr.
Age 22
Gender Male
Race Hispanic/Latino
SUSPECT DETAILS
Name Agustin Mendoza, Francisco Hernandez, Lenin Gonzalez
Offense Hit and Run
Cause Beaten/Battered
CASE DETAILS
Status Arrest Made
Incident location 6222 Victoria
Donna Texas, 78537
Hidalgo
L.E.A HCSO

Cold Case Spotlight

A judge sentenced a Donna man to 20 years in state prison after he pleaded guilty to first-degree murder on Wednesday. Lenin Gonzalez, 34, of Donna pleaded guilty to stabbing Javier Olvera with a knife on Jan. 15, 2017. Olvera later died at a hospital. Investigators believe the murder resulted from a dispute over money during a drug deal on the 6000 block of North Victoria Road. Investigators later found a bloody knife believed to be used in the murder during a search warrant at a suspect’s house. Investigators arrested three suspects in connection with Olvera’s death: Gonzalez, then 23-year-old Agustin Mendoza and then 26-year-old Francisco Hernandez. On March 27, 2018, Hernandez pleaded guilty to Olvera’s murder and was sentenced to 30 years in state prison. Mendoza is set to return to court for a pre-trial hearing later this month.