BELVEDERE (CBS SF) – Belvedere police arrested a San Anselmo man Monday on suspicion of committing a sexual act with a girl under 16 years old.

Max Eli Rubinstein, 25, was scheduled to be arraigned Wednesday in Marin County Superior Court, Belvedere Police Chief Tricia Seyler said.

READ MORE: Victims Of EDD Bank Of America Debit Card Fraud Could Be Taxed On Benefits They Never Received

Rubinstein was being held under $500,000 bail in the Marin County jail for oral copulation with a minor.

Seyler said there was more than one sexual contact between Rubinstein and the teen in Belvedere between December 2010 and November 2011.

Police began their two-month investigation in November 2012 when the Belvedere girl’s parents read their daughter’s messages on Facebook, police said.

READ MORE: 5 Charged In SF Corruption Probe, Temporarily Barred From Receiving City Contracts

Rubinstein became acquainted with the girl when he was employed in the after-school care program at the K-8 St. Hilary School in Tiburon, Seyler said.

Rubinstein resigned from his job at the school in May 2012, Seyler said.

“This is an extremely sensitive case that has attracted a lot of attention in the city whose citizens are close,” Seyler said.

St. Hilary School Principle Charley Hayes did not immediately return a call for comment Tuesday afternoon.

MORE NEWS: COVID: SF Restaurants Use High-Tech Tools To Make Indoor Dining Safe

(Copyright 2013 by CBS San Francisco. All Rights Reserved. This material may not be published, broadcast, rewritten, or redistributed.)