Former Norwalk teacher David Marchetti pleads not guilty to taking inappropriate pictures of unsuspecting students

A former Norwalk teacher accused of using his cellphone to film up the skirts of his students has pleaded not guilty.
David Marchetti appeared in court yesterday.
Police say they searched his phone and found several pictures taken at Brien McMahon High School without the victims' knowledge.
They say one of the pictures is of a 14-year-old girl.