Rio Grande Valley Friends and Families of Murdered Children


This database will consist of unsolved homicides.  The Rio Grande Valley database will be composed of the four-county area: 1) Hidalgo, 2) Cameron, 3) Starr and 4) Willacy counties. All victims are submitted by law enforcement or the victims' families. Additional counties will be added to this database as time and funding permit. Keeping your loved one's case in the PUBLIC EYE is a good thing.

To submit your loved one for consideration please Fill out form Case Summary Form. Rio Project Cold Case is not a private investigative firm.


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1 cases found.
CCR: Unknown
Date Reported: February 15, 2017
Name Jose Guadalupe Martinez
Age 50
Gender Male
Race Hispanic/Latino
Name Unknown
Offense Murder
Cause Gun/Firearm
Location Unknown
Status Unsolved
Incident location 2485 Military Highway
Brownsville Texas, 78520
L.E.A Brownsville Police Dept.

Cold Case Spotlight

BROWNSVILLE, Texas (ValleyCentral) — Jose Guadalupe Martinez was found murdered in his office in 2017. Investigators have been able to narrow the timeline of when he was killed, but the case still remains unsolved. At 7:49 p.m. on March 15, 2017, officers responded to Milo’s Tire Shop, located at 2485 Military Highway in Brownsville after a body was found. A man discovered the body, and went to a neighbor who was close by. When the two returned, a third man was there at the scene. The three men then called police and waited for officers to arrive. Upon arrival, officers found Martinez face down, in a pool of blood in his office. He had a gunshot wound to his head, and investigators found one bullet casing at the scene. The man who originally discovered Martinez’ body arrived at the store at 7:35 p.m. to pay for some rims he had purchased. Investigators at the scene later found a receipt Martinez had from a purchase at a dollar store at 7 p.m. that same day. With this information, they were able to determine that Martinez was murdered at some time between 7 p.m. and 7:35 p.m. However, Brownsville police said they have “no leads whatsoever,” with the case.