A man twice convicted of raping teenage girls will be paroled from California State Prison, Corcoran, and will move to Sun City on Thursday, the district attorney's office announced Tuesday.

David Alan Dokich, 52, will be designated a high-risk sex offender needing supervised parole and forced to register every 90 days with law enforcement authorities and disclose his whereabouts. The Sheriff's Department will post fliers alerting the community of Dokich's presence.

Deputy Dist. Atty. Linda Dunn said she was concerned about Dokich's return to society following his 1982 rape of a 15-year-old girl in his Dana Point apartment, and his 1985 rape and kidnapping of a 16-year-old girl at a Riverside County doughnut shop.