An 85-year-old grandfather, Chris Bagzarian, was kidnapped from his North Ryde home seven days ago in what police believe is a case of mistaken identity. Detectives raided an isolated property in Dural, Sydney's northwest, which is believed to have been used as a hideout by the kidnappers. Police are appealing to the public for information as the search continues, with hopes fading for Mr Bagzarian to be found alive.

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