Human blood and fibers discovered in Kristin Smart murder case

July 16, 2021

Kristin Smart


San Luis Obispo County investigators discovered human blood under the home of Paul Flores’ father in 2021, court records show. They also found fabric fibers in the place where they believe the body of Kristin Smart was buried.

Ground penetrating radar found a 6 foot by four foot anomaly under Ruben Flores’ home in early 2021. Four soil samples taken from the area then tested positive for human blood, but not for DNA evidence, records show.

Archeologist Cindy Arrington found staining in the dirt to indicate a body had been put in a hole, a chemical poured over it, the hole filled in and the body moved later.

“This is the exact scenario where someone would dig the hole, put in the body, then re-excavate the hole to remove the body, then fill it back in once the body has been removed,” Arrington told investigators. “The fact that human blood was found should surely be a good indicator that a body was there.”

The soil samples also contained fibers of various colors including red, blue, brown, black and light colored or no color, according to the Sacramento District Attorney’s Office forensic lab. When Kristin Smart was last seen, she was wearing red Puma shoes, black shorts with white stripes and a light grey top.

Ruben Flores’ son Paul Flores is accused of murdering Cal Poly freshman Kristin Smart during an attempted rape in 1996. Charged with accessory after the fact, Ruben Flores is suspected of helping his son with Smart’s body, which prosecutors believe was buried under his porch.

Recently released court records describe evidence prosecutors plan to use in their cases against Ruben and Paul Flores.

Smart, a native of Stockton, was nearing the end of her freshman year at Cal Poly when she vanished on May 25, 1996, after attending an off-campus party. She was last seen near the intersection of Perimeter Road and Grand Avenue. Smart was headed to her dorm room, and Paul Flores, then a 19-year-old freshman, walked to campus dorms from the party with her.

Smart’s body was never found.

Paul Flores

In the weeks following Smart’s disappearance, investigators report they caught Paul Flores in numerous lies.

The day after Smart and Paul Flores attended the frat party, Paul Flores told his friend Jeremy Moon that he did not know how he got the black eye he was sporting, according to court records. Paul Flores later told investigators he injured his eye while playing basketball with Moon. Moon told authorities that did not happen.

Flores told investigators he had not interacted with Smart until after he left the frat party, but multiple witnesses disputed that. In a 2001 audiotape of an undercover FBI operation, Flores admits he helped pick Smart up from the floor at the party, according to court records.

In 2004, Paul Flores allegedly told Jenifer Hudson, a woman he met at a mutual friend’s house, “That bitch dick tease. I was at a party with this bitch and all she did was lead me on. I finally had enough of her shit, so I took care of her.”

Ruben Flores also allegedly demeaned Kristin Smart, regularly referring to her as a “dirty slut,” said David Stone, a man who rented a room from Ruben Flores for 10 years.

Paul and Ruben Flores’ preliminary hearing is scheduled for Aug. 2.


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They are coming Kristin! Soon I hope sweet girl!

Ladies stay away from any man who talks like this about women, teach your sons this is wrong! Smart Family forever in my heart and thoughts, may peace find your family!


I don’t believe that we have heard the term “DNA” yet. My guess is a chemical would change the structure of DNA but hopefully they found some DNA that was useable.


None of this is actual evidence but will be used as evidence ….No DNA in blood found matches Miss Smart …The archeologists guess about sequence , where is the test results determining what alleged chemical was poured on a body ? Maybe chemical used to clean deck or deck rugs . Maybe if human blood person building deck cut themselves ,, maybe a pipe needed dug up and repaired explaining hole, plumbers blood ? Or blood from Mrs. Flores menstrual cycle from septic pipe repair …and Fibers,we have all seen porch/deck rugs lose fibers over time ….None of this is physical evidence ….the verbal is heresay …DA is using smoke and mirrors


How did Paul get into Cal Poly to begin with?


Poly has reduced admissions criteria for locals. Fair enough, let the kid from Paso, or unfortunately Paul from Arroyo Grande, go to their home school. I believe this is the case for all CSU institutions.


Agreed, I am very aware of local student agreement, but Flores just doesn’t add up to the peeps who I know who got in that way.


The sad reality of all this, is why has it taken so long for all this to come out?

Francesca Bolognini

Misogynists, much? The story just gets more and more creepy as it goes along. I hope that this evidence will be what it takes to nail the case shut. After 25 years, it is high time it was solved and the perps taken out of circulation. I also wonder who would spend 10 years in the same house with a guy who talked about women that way. This father/son sicko team needs to be locked up before they do more harm.


This isn’t about misogyny. This is about something far sicker and darker. Flores should have been removed from society decades ago.


the original good ol’ boys club : there is a reason Cal Poly/corp. and the men’s colony prison have always employed generations of families (all having the same connection). Wasn’t deceased SLO county supervisor and calpoly prof3ssor Adam Hill from the east coast as well?

Francesca Bolognini

You need to look up the definition of the term. Then look again at the quotes from both Paul Flores and his father. I rest my case.


Think this is the one time I have seen you get so many up votes, you got mine too!