Kelly Ray Medlock, a former Santa Rosa resident who was convicted of sexually molesting three children more than a decade ago, has been denied parole.

Medlock, 66, is currently serving his sentence at Soledad State Prison and will not be eligible for parole for another 15 years, according to Sonoma County District Attorney Jill Ravitch.

Ravitch said Wednesday that Medlock was denied parole on Nov. 9 by a two-member panel of the Board of Prison Terms.

"Parole was rightfully denied for this serial child molester, who tragically victimized multiple vulnerable members of his family," Ravitch said in a statement. "We will continue to advocate for the public's safety in opposing the release of these predators."

Medlock was convicted on Aug. 17, 2000, of sexually molesting three children under 14. His actions came to light when a 12-year-old girl told her mother that Medlock had molested her and her 7-year-old sister on several occasions, Ravitch said.

Later, Medlock's 6-year-old step-granddaughter revealed that Medlock had molested her multiple times as well. Medlock pleaded no contest to sexual molestation charges and was sentenced to 15 years to life in prison.

Ravitch said the parole board denied Medlock's request for parole in part because of his prior history. In 1980, Medlock was arrested for sexually assaulting his 6-year-old step-daughter in Sacramento, where he grew up.

The girl in that case is the mother of the 6-year-old victim in the Sonoma County case. Medlock admitted guilt in the Sacramento case and agreed to complete three years of sex offender treatment in exchange for the dismissal of all charges.