Prison officials said he died in hospital late on Tuesday, after prison medical staff failed to revive him.
Castro, 53, abducted three women for about a decade until May this year. He kept his victims chained up and raped them.
He was sentenced on 1 August to life imprisonment without parole plus 1,000 years. The house was demolished, reports the BBC.
Castro, 53, abducted three women for about a decade until May this year. He kept his victims chained up and raped them.
He was sentenced on 1 August to life imprisonment without parole plus 1,000 years. The house was demolished, reports the BBC.