A California teacher is accused of hiding a missing teenager who vanished more than two years ago and reappeared at his family's home in March, authorities said last week.Holga Castillo Olivares, 61, was scheduled to appear in court Monday in the June 2020 disappearance of Michael Ramirez, 17, the Rancho Cordova Police Department said in a statement.Olivares faces charges of detaining a minor with the intent to conceal from a parent and contributing to the delinquency of a minor, the department said.Ramirez’s aunt and legal guardian, Katte Smith, told NBC affiliate KCRA that he ran away after an argument with his parents and never returned.The statement described the alleged crimes as "unrelated" to Olivares’ assigned duties and said she was taken into custody after her students were dismissed for the day."