California — Nearly 30 years after Kristin Smart disappeared, investigators have returned to a property connected to the Flores family as part of a renewed effort to gather evidence in one of the nation’s most closely followed cold cases.

On May 6, 2026, the San Luis Obispo County Sheriff’s Office executed a search warrant at the Arroyo Grande home of Susan Flores, the mother of convicted murderer Paul Flores. The search focused on outdoor areas, including deck and patio structures, as forensic teams collected soil samples and conducted additional examinations.

Sheriff Ian Parkinson later announced that laboratory testing detected compounds consistent with human decomposition. However, authorities emphasized that the findings do not confirm Kristin Smart’s remains were present, nor do they establish when the compounds may have been deposited.

Kristin Smart, a 19-year-old California Polytechnic State University student, disappeared during Memorial Day weekend in May 1996 after attending an off-campus gathering. Paul Flores was the last known person seen with her.

In 2022, Paul Flores was convicted of first-degree murder and sentenced to 25 years to life in prison, despite Kristin’s remains never being recovered. His father, Ruben Flores, was acquitted of accessory charges.

The latest search has renewed public interest in earlier investigations involving multiple Flores family properties. Over the years, cadaver dogs, ground-penetrating radar, and previous excavations have identified areas of interest, particularly around backyard structures.

Authorities say advances in forensic science played a significant role in the decision to revisit the property. Modern techniques, including improved ground-penetrating radar and soil vapor analysis, can detect chemical indicators ᴀssociated with decomposition with greater precision than was possible decades ago.

Investigators continue to stress that the recent findings represent one part of an ongoing investigation and should not be interpreted as definitive proof until additional testing is completed.

The case has also highlighted the challenges involved in long-term missing person investigations, particularly when physical remains have not been located. Over the years, public advocacy, investigative journalism, and advancements in forensic technology have helped keep the case active.

For Kristin Smart’s family, every new development brings renewed hope for answers after nearly three decades of uncertainty.

As investigators continue their work, authorities say the focus remains on establishing verified facts and pursuing any evidence that could help provide a fuller understanding of what happened to Kristin Smart.

Today, the case remains a powerful reminder that unresolved investigations can continue to evolve as technology improves and new information emerges, even many years after a disappearance first occurred.