(Cleveland) - Could there be more Ariel Castro victims?

Attorney General Mike DeWine's office confirms to WTAM 1100 that they are testing more evidence from Castro's Seymour Ave. home. The Bureau of Criminal Investigation is trying to determine if anyone else may have been part of Castro's activities.

Castro pleaded "not guilty" Wednesday to the 329 count indictment handed down last Friday. He's accused of holding three women captive in his home for a decade while raping them.

Amanda Berry, Gina DeJesus and Michelle Knight were found at his Seymour Ave. home May 6th. The 52-year-old Castro is charged with aggravated murder, kidnapping and rape.

The murder charge involves Castro's allegedly starving and punching a pregnant woman in captivity until she miscarried.

A Cuyahoga County grand jury returned the indictment last week against the former Cleveland school bus driver, who was fired last fall.

Casto's attorneys told the media, there are some charges they know they cannot dispute but hope the proseuctor will drop the aggravated murder charge so the three women don't have to go through a trial.

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