Cal Poly student Kristin Smart went missing Memorial Day weekend in 1996. Now, 26 years later, the last person to see her alive has been found guilty of her murder. Paul Flores, 45, was convicted ...

This photo provided by the San Luis Obispo County Sheriff's Office shows Ruben Flores, 80, who was arrested in connection to the murder of college student Kristin Smart at his Arroyo Grande home ...

Flores, who was Smart's friend, was reported to have walked her home from the party. Smart, who was never found, was declared dead in 2002. Flores' father, Ruben Flores, 80, was also arrested Tuesday.

The San Luis Obispo County district attorney said Kristin Smart was killed in 1996 during an attempted rape by a fellow student and the suspect's father helped hide her body. SAN LUIS OBISPO ...