Can a person have the Holy Ghost and be demon poss

[Esther]

I think it was Bro. Wm Bustard that said he prayed for a young lady that had the HG and before she was delivered from a spirit of fear, he asked the spirit how and when he entered her. The spirit told him that when she was a child her parents were fighting and in fear she crawl under the table and the spirit of fear entered her then.

She was delivered from the spirit of fear and without telling her family what happened they could look at her and tell something was different.

How can this be? I don't have all the answers. But again remember we are not talking about a person that is possessed by spirits but someone that is possessing a spirit.