Associated Press - October 9, 2009 8:14 PM ET

PHOENIX (AP) - Authorities say a former teacher at Phoenix's Shadow Mountain High School was sentenced Friday to four years in prison plus lifetime probation for having sex with a 17-year-old female student.

Prosecutors say 47-year-old Thomas Krepelka was arrested in March on felony charges of molestation of a child and sexual contact with a minor.

Krepelka was a science teacher and baseball coach at Shadow Mountain High.

Authorities say a student made accusations about Krepelka to school administrators and they in turn called in Phoenix police.

In August, Krepelka pleaded guilty to two counts of attempted sexual contact with a minor.

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