PHOENIX -- A fugitive accused of kidnapping his girlfriend's child is in custody, 11 years after the kidnapping occurred, the FBI said.

Agents said Walter Mitchell, also known as Walter Dimiano or Walter Damiano, abducted his live-in girlfriend's 9-month-old child from their west Phoenix home near Thomas Road and 21st Drive on Aug. 31, 1996. Mitchell is not the child's father.

Phoenix police investigated the kidnapping, and a warrant was issued for Mitchell's arrest in April 1997. He was charged with custodial interference.

In July 1997, a federal warrant was issued for Mitchell's arrest, and the FBI began investigating the case.

On Thursday, more than 10 years after the arrest warrants were issued, the FBI said it located Mitchell and the child at Mitchell's parents' home near 51st Avenue and Union Hills Drive in Peoria.

Mitchell was arrested at his parents' home around 6 p.m. and transported to the Fourth Avenue Jail.

The child was placed in the custody of Child Protective Services.

Karen Peterson is a child psychologist at Phoenix Children's hospital. She said the emotional toll this could have on a 12-year-old boy is enormous.

"I think what would be the most troubling for a child would be to have adult expectations," she said. "My guess is it would be very confusing for the child."

Bond for Mitchell was set at $63,000. His next court date was set for Dec. 14.