Crime

Kristin Smart search turned up ‘several items,’ SLO County Sheriff’s Office says

The San Luis Obispo County Sheriff’s Office released new information in the recent search for Kristin Smart on Tuesday.

The Sheriff’s Office served a search warrant for the Arroyo Grande home of Susan Flores on May 6, 30 years after her son, Paul Flores, murdered Smart.

Paul Flores was convicted in 2022 of killing Smart when she was a first-year student at Cal Poly. She went missing on Memorial Day weekend of 1996, but her body was never found.

The San Luis Obispo County Sheriff’s Office served an additional search warrant during a search of Susan Flores’ Arroyo Grande home in early May 2026 to excavate a portion of the yard as part of the ongoing Kristin Smart investigation. The Sheriff’s Office said it recovered “several items considered evidentiary in nature” but no human remains.
The San Luis Obispo County Sheriff’s Office served an additional search warrant during a search of Susan Flores’ Arroyo Grande home in early May 2026 to excavate a portion of the yard as part of the ongoing Kristin Smart investigation. The Sheriff’s Office said it recovered “several items considered evidentiary in nature” but no human remains. San Luis Obispo County Sheriff’s Office

The search lasted four days, during which time investigators used ground penetrating radar, and soil vapor scientists took samples from all around Susan Flores’ house and in her backyard, which yielded “very strong” results for evidence of human decomposition in one area — a walkway on the west side of the home at 529 East Branch St. that was covered in concrete.

It is an area that had been independently tested before from the neighboring property’s side, showing evidence of human remains in the soil as early as 2021, but samples had never been taken directly in Flores’ backyard.

Computer modeling from a team of scientists shows how soil vapor sampling discovered human decomposition compounds in Marcia Papich’s yard at 523 East Branch St., adjacent to Susan Flores’ fence and home at 529 East Branch St., in August 2021. The data shows compounds were found at more than 3100 parts per billion in the soil in the red zone.
Computer modeling from a team of scientists shows how soil vapor sampling discovered human decomposition compounds in Marcia Papich’s yard at 523 East Branch St., adjacent to Susan Flores’ fence and home at 529 East Branch St., in August 2021. The data shows compounds were found at more than 3100 parts per billion in the soil in the red zone. Photo courtesy of Tim Nelligan

“Soil scientists identified an area along the side yard of the property that produced results consistent with the possible presence of human remains,” the agency said in Tuesday’s news release.

Sheriff Ian Parkinson had previously announced during a May 8 press conference that the search had identified evidence of human remains.

The release said Sheriff’s Office investigators secured an additional search warrant, known as a piggyback warrant, on May 8 to excavate the area.

The San Luis Obispo County Sheriff’s Office served an additional search warrant during a search of Susan Flores’ Arroyo Grande home in early May 2026 to excavate a portion of the yard as part of the ongoing Kristin Smart investigation. The Sheriff’s Office said it recovered “several items considered evidentiary in nature” but no human remains.
The San Luis Obispo County Sheriff’s Office served an additional search warrant during a search of Susan Flores’ Arroyo Grande home in early May 2026 to excavate a portion of the yard as part of the ongoing Kristin Smart investigation. The Sheriff’s Office said it recovered “several items considered evidentiary in nature” but no human remains. San Luis Obispo County Sheriff’s Office

Investigators removed large concrete pavers in the side yard and excavated the area on May 9 “with investigators carefully sifting through the excavated soil for any evidence related to Kristin,” the release said.

A Tribune reporter saw a Sheriff’s Office investigator unload at least three shovels from a county vehicle and bring at least two into the backyard that day.

A Sheriff’s Office investigator unloaded at least three shovels from a county vehicle and brought at least two into the backyard as the third day of a search related to the Kristin Smart case continued on Friday, May 8, 2026. Investigators have been searching the Arroyo Grande home and property of Susan Flores, mother of convicted killer Paul Flores.
A Sheriff’s Office investigator unloaded at least three shovels from a county vehicle and brought at least two into the backyard as the third day of a search related to the Kristin Smart case continued on Friday, May 8, 2026. Investigators have been searching the Arroyo Grande home and property of Susan Flores, mother of convicted killer Paul Flores. Sadie Dittenber sdittenber@thetribunenews.com

Investigators “recovered several items considered evidentiary in nature” during the search which are currently being analyzed, the release said.

Sheriff’s Office spokesman Tony Cipolla clarified the items were recovered during the search of the entire property, which included inside and outside the home.

“Ultimately, no human remains were recovered during the excavation,” the agency reiterated from its earlier announcement of the end of the search.

The San Luis Obispo County Sheriff’s Office served an additional search warrant during a search of Susan Flores’ Arroyo Grande home in early May 2026 to excavate a portion of the yard as part of the ongoing Kristin Smart investigation. The Sheriff’s Office said it recovered “several items considered evidentiary in nature” but no human remains.
The San Luis Obispo County Sheriff’s Office served an additional search warrant during a search of Susan Flores’ Arroyo Grande home in early May 2026 to excavate a portion of the yard as part of the ongoing Kristin Smart investigation. The Sheriff’s Office said it recovered “several items considered evidentiary in nature” but no human remains. San Luis Obispo County Sheriff’s Office

The release said that no further information was available and no additional comments or further updates regarding this investigation will be provided.

“The Sheriff’s Office remains fully committed to finding Kristin and bringing her home to her family,” the release said.

Kristin Smart was last seen walking back to her dorm from an off-campus party on May 25, 1996. She was 19 and finishing her freshman year at Cal Poly.
Kristin Smart was last seen walking back to her dorm from an off-campus party on May 25, 1996. She was 19 and finishing her freshman year at Cal Poly. Courtesy photo

Follow More of Our Reporting on Full Coverage of the Kristin Smart Case

Chloe Shrager
The Tribune
Chloe Shrager is the courts and crimes reporter for The Tribune. She grew up in Palo Alto, California, and graduated from Stanford with a B.A. in Political Science. When not writing, she enjoys surfing, backpacking, skiing and hanging out with her cat, Billy Goat. Support my work with a digital subscription
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