Detectives arrested Oak Grove High School track coach Clinton Pappadakis. Suspicious activity involving the coach was reported to the National Center for Missing and Exploited Children.
Police served a search warrant at his home and investigators said they found child pornography on multiple devices belonging to the suspect.
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Just last week, police arrested his twin brother, Clifford.
Clifford Pappadakis worked as a PE teacher and track and field coach at Willow Glen Middle School.
He appeared in court last week and is on supervised release.