The man, Derrick Morris, was stunned with a Taser gun and bitten by a police dog when he was arrested last week near his home.
Police spokesman Cpl. Trinidad Navarro says police were searching for an armed sex offender and Morris was wearing clothing that resembled the assailant. According to police, Morris ignored police commands.
Morris is a student at Smyrna High School. His mother says he didn't hear police because he was listening to his iPod.
Another suspect was arrested and charged in the rape a short time later.
Police say they've apologized to Morris.
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Information from: Delaware State News, http://www.newszap.com
