Kristin Denise Smart

Kristin, circa 1996; Paul Flores in 1996; Paul, circa 2021; Ruben Flores, circa 2021

  • Missing Since 05/25/1996
  • Missing From San Luis Obispo, California
  • Classification Endangered Missing
  • Sex Female
  • Race White
  • Date of Birth 02/20/1977 (44)
  • Age 19 years old
  • Height and Weight 6'1, 145 pounds
  • Clothing/Jewelry Description A light gray cropped t-shirt, black nylon surfing or running shorts, and red and white Puma sneakers.
  • Distinguishing Characteristics Caucasian female. Blonde hair, brown eyes. Kristin's nicknames are Roxy and Scritter. She had a tan at the time of her May 1996 disappearance. Her ears are pierced, and her natural hair color is brown.

Details of Disappearance

Kristin was a freshman architecture major at California Polytechnic State University (Cal Poly) in San Luis Obispo, California in 1996. She departed from an off-campus party and headed for her dormitory at approximately 1:30 and 2:00 a.m. on May 25, 1996. She was apparently under the influence of alcohol and/or drugs at the time; she passed out on the lawn and after someone roused her, she was having trouble walking.

Kristin was accompanied by a female acquaintance and another student from the university, Paul R. Flores, when she left the party. Photos of Paul are posted with this case summary. He was a food science major at Cal Poly in 1996. Kristin apparently met Paul at the party earlier in the evening. Her friend separated from Smart and Paul at the intersection of Perimeter Road and Grand Avenue on the college campus. Paul allegedly told Kristin's friend that he would see Smart to her home.

She was last seen walking north on Grand Avenue with Paul, towards Muir Hall, her dormitory. Kristin has never been heard from again. She was not carrying any identification, cash or personal belongings at the time she vanished. When questioned about Kristin's whereabouts by authorities, Paul claimed that he continued walking to his own dormitory and last saw Kristin on Grand Avenue shortly after her other friend departed.

Kristin's roommate contacted police later in the morning of May 25, worried because Kristin had not returned to her dormitory. The roommate had been at the room the night Kristin was last seen, and never saw her get back home. Her clothing, toiletries, cosmetics, medicine and identification were left undisturbed in her room; there is no evidence that she made it back there.

Paul was reportedly seen with a black eye later in the day on May 25. He told several different stories to law enforcement regarding how he received his injury. At one time he claimed he had hurt his eye playing basketball with a friend, but the friend told authorities Paul had had the bruise when he arrived at the game. When confronted with the lie, Paul changed his story and told police he had hurt his eye while working on a truck at his father's home. He allegedly told another friend that he did not know how he got the black eye and that he "just woke up with it."

Authorities refused to take the missing persons report for four days, because Kristin disappeared on Memorial Day weekend and college students often take impromptu vacations at that time. Kristin's parents have criticized authorities for not getting involved in the case sooner, saying they probably lost valuable evidence because of it. Police admit the delay hampered the investigation.

Paul dropped out of Cal Poly shortly after Smart disappeared. He had been making very poor grades and was in danger of failing out of the university, and he had also gotten arrested for driving while intoxicated and lost his driver's license. He removed his belongings from his dormitory room at Santa Lucia Hall prior to a search of the premises by law enforcement. Cadaver dogs utilized by authorities led them to Paul's mattress in his former room during the investigation, but no additional evidence was located at the time.

Investigators repeatedly questioned Paul regarding Kristin's case since 1996, but he has invoked his Fifth Amendment rights and refused to answer. They offered him a plea deal where he would plead guilty to involuntary manslaughter and reveal the location of Kristin's body in exchange for a six-year prison term, but he refused the offer.

The Smart family persisted in their efforts to get investigators to come up with evidence against Paul. A friend of the Smarts, Dennis Mahon, published a website which gives Paul's address and tracked him whenever he changed residence. The Flores family got a restraining order against him and he was jailed at least once for violating it. In 2005, Paul's mother and her boyfriend sued Kristin's parents and Mahon, alleging harassment, severe emotional distress and lost income as a result of their behavior.

Kristin's family held a memorial service for her in May 2001, and again in June 2003. She was declared dead in May 2002. Her family attempted to pursue a civil suit against Paul for Kristin's wrongful death, but dropped the case in 1996 after Paul pleaded his Fifth Amendment rights during the proceedings. Paul has no record of violent crimes, but has been charged with drunk driving multiple times since Kristin disappeared, in addition to the charge from before she vanished. People who knew him while he was a student at Cal Poly stated he drank heavily in 1996 and had a tendency to become obnoxious when intoxicated, and that he was not popular with the other students.

In 2003, suggestions were made that Scott Peterson might be linked to Smart. Scott Peterson's wife, Laci, disappeared on Christmas Eve 2002, and her torso was found in the Pacific Ocean in April 2003. Scott was later convicted of murdering her. Both Laci and Scott had attended Cal Poly; they were seniors at the school when Kristin disappeared. Police investigated possible ties between Scott and Kristin and announced that there was nothing to link him to Kristin's disappearance.

In April 2021, nearly twenty-five years after Kristin disappeared, authorities arrested Paul and his father, Ruben, in her case. Paul was charged with murder and Ruben was charged with being an accessory. Authorities believe Paul killed Kristin during a rape or rape attempt in his dormitory room on the night of her disappearance, and that Ruben helped his son hide her body after the killing. They stated Kristin's body has not been found, but that they'd found physical evidence during a search of Paul's home and that of his parents. Photos of both Paul and Ruben are posted with this case summary.

Kristin is described as friendly and generous. She was a competitive swimmer and had traveled to many places, including Hawaii and South America, prior to her disappearance. She had originally enrolled at the University of California at Santa Barbara, but transferred to Cal Poly early in her freshman year. Foul play is suspected in her case due to the circumstances involved.

Updated 7 times since October 12, 2004. Last updated April 14, 2021; details of disappearance updated.