Please has anyone died at this address my kids experiencing paranormal demonic activity

This house was built in the 1950s for two men who were quadriplegics and who originally had the cinderblock rear wall topped with broken glass. It was bought by actor Frank de Kova about 1958 and allowed to fall into disrepair. In 1981 Mr de Kova died in his sleep in the rear bedroom of the house. It would seem that since that time considerable money and effort was put into refurbishing and rennovating.