A former high school chemistry teacher pleaded guilty to having sexual relationships with at least three students.
Earl Thomas Roske, 41, pleaded guilty Monday to two counts of oral copulation with a minor, two counts of using a minor to produce child pornography and two counts of sending harmful matter to a minor.
Under a deal with prosecutors, Roske faces nearly three years in prison and three years probation when he is sentenced Aug. 26 in Santa Clara County Superior Court.
