Crime Solvers Central
Crime Solvers Central
302 Cases Solved. Advancing justice for missing persons, unsolved homicides, unidentified and unclaimed remains.

Case Description

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Summary based on the NamUs case record (MP10825) and 4 other sources
Rosio Monica Beltran, 26, was last seen on September 9, 2000, after leaving the Bellbottoms nightclub in North Richland Hills, Texas. She was accompanied by Mario Alberto Prieto, a man she had just met that night. Surveillance footage captured them leaving the club together around 1:00 a.m. Neighbors in Prieto's Bear Creek apartment later reported hearing screams around 2:30 a.m. that morning.

Investigators later discovered significant evidence pointing to foul play. Bloodstains matching Beltran’s DNA were found inside Prieto’s apartment, particularly in the bathroom and bedroom, despite attempts to clean and repaint the area. Witnesses also reported seeing Prieto remove a heavy, foul-smelling box from his apartment the following day. Shortly after Beltran’s disappearance, Prieto fled the area and was tracked to San Antonio, where he died in a police shootout on September 11, 2000. Despite thorough searches, including at a nearby landfill, Beltran’s body has never been found.

Beltran, a native of Peru, was working as an au pair in Texas at the time, with plans to improve her English before returning to Peru to pursue a teaching career. Authorities believe she was the victim of a homicide, and her case remains unsolved.

Last Seen: Sep 9, 2000

Possible Unidentified Matches (1)

Unidentified remains cases whose details are consistent with this person, ranked by how closely they compare. Fields that are unknown in either case are left out of the score.

75%Possible
Jane Doe — Palmer, Texas
UP1826 • Found Nov 22, 2001
View case
Sex ✓Female
Age 100%Est. 17–29 vs 26 when missing
Location 91%43 mi away, same state
TimingFound 14 months after last seen
Height 100%5'3" vs 5'4"–5'7"

These comparisons are generated automatically from public NamUs case data and are not confirmed identifications. Only DNA, dental or fingerprint comparison by investigators can confirm an identity. If you believe two cases are connected, contact the agency handling the unidentified case.