Camila Mendoza Olmos’s body unexpectedly showed signs of decomposition much earlier than normal, shocking police when they discovered the substance the student had been heavily ingested just hours before her death. What was that substance?

Texas investigators say they were stunned when Camila Mendoza Olmos’s body showed signs of decomposition far earlier than medically expected. A focused toxicology review has now identified a substance she ingested heavily just hours before her death—a finding that reorients the investigation.

What the Substance Was

According to officials briefed on the lab results, Camila had ingested a high concentration of a glycol-based industrial compound, not intended for human consumption. Investigators emphasized the substance is commonly found in household or workshop products, colorless, and easy to mix into a beverage without immediate detection.

“It’s not a drug of abuse,” a forensic source said. “It’s a chemical that profoundly disrupts the body’s chemistry.”

Why It Matters

Medical examiners say the compound can:

  • Rapidly alter internal pH and tissue integrity

  • Accelerate post-mortem changes, making the body appear to decompose sooner

  • Mask the true time of death if not specifically tested for

Those effects explain why early assessments were confusing—and why investigators ordered an emergency, expanded toxicology panel.

How Police Discovered It

The substance was identified after analysts:

  • Re-tested stomach and blood samples with non-routine screens

  • Matched chemical markers to residue found on a container recovered during the search

  • Cross-checked purchase and access records linked to the final hours

Authorities would not disclose brand names or exact formulations, citing public safety and the ongoing case.

What Comes Next

Police are now tracing how Camila obtained the compound, who had access to it, and who was present during the window when it was ingested. Investigators stressed that ingestion does not prove intent and that all conclusions will depend on corroboration.

“This explains the anomaly,” an investigator said. “Now we have to explain the circumstances.”

Further updates are expected as prosecutors review the findings and detectives complete access and timeline analyses.