A man has been convicted for a decades-old murder in San Diego County. - Randall Oyler, 65, was found guilty of first-degree murder for the 1990 killing of Margaret Orozco Jackson.
- DNA evidence under the victim's fingernails linked Oyler to the crime. - Jailhouse recordings captured Oyler making incriminating statements.
- Sentencing is set for next month, with a possible 25 years to life in prison. The conviction brings closure to a case that remained unsolved for over 35 years.