YONKERS - No charges will be filed against the driver in the crash at a Yonkers carnival last October that killed a teenage girl.

The Westchester District Attorney's Office conducted a full investigation into the crash and ruled that it was an accident caused by a mechanical malfunction.

Police say teacher Roseanne Piccirilli, 55, was leaving the carnival sponsored by St. Paul the Apostle Church when her 2002 Jeep accelerated and hit several cars. The Jeep then jumped the curb and crashed into a group of people before crossing the intersection of McLean Avenue and McCollum Place. Kalie Gill, 15, was killed, and her 12-year-old sister, Lindsey, was severely injured.

The exact mechanical failure is not known, though some unconfirmed reports say it was faulty brakes.