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

Case Description

Any updates on this case? Let us know!
Summary based on the NamUs case record (MP61222) and 5 other sources
Sandra Natalia Silverio, a 33-year-old woman from Brownsville, Texas, was last seen on March 4, 1989. Sandra, originally from Honduras, was reportedly attempting to cross the Rio Grande into the United States with a group. According to accounts from her brother, she successfully crossed the river but was separated from the group shortly afterward. Despite having family in the Brownsville area, she never made contact with them, and her whereabouts have remained unknown ever since.

Her disappearance has been classified as a missing person case, and various sources indicate that some agencies mistakenly list her missing date as June 4, 1989, instead of the correct March date. Law enforcement and her family continue to seek answers about her case, and it remains unsolved. The Brownsville Police Department remains the primary agency investigating the case, hoping for any new leads to bring resolution to her family.

Last Seen: Mar 4, 1989

Possible Unidentified Matches (3)

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.

78%Possible
Jane Doe — Texas
UP3640 • Found Jul 26, 1997
View case
Sex ✓Female
Age 88%Est. 27–32 vs 33 when missing
Race 60%White
Location 100%10 mi away, same county
TimingFound 8 years after last seen
Height 100%5'5" vs 5'3"–5'5"
Weight 100%150 lb vs 143–150 lb
Hair 100%Brown vs Brown
Eyes 100%Brown vs Brown
75%Possible
Jane Doe — Texas
UP2986 • Found Apr 13, 2007
View case
Sex ✓Female
Age 100%Est. 27–37 vs 33 when missing
Race 60%White
Location 100%10 mi away, same county
TimingFound 18 years after last seen
Height 100%5'5" vs 5'3"–5'5"
Weight 89%120 lb vs 143–150 lb
Hair 60%Black vs Brown
75%Possible
Jane Doe — Texas
UP3536 • Found Sep 21, 1999
View case
Sex ✓Female
Age 100%Est. 29–34 vs 33 when missing
Race 60%White
Location 89%51 mi away, same state
TimingFound 11 years after last seen
Height 100%5'5" vs 5'3"–5'5"
Weight 100%140 lb vs 143–150 lb
Hair 60%Black vs Brown

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.