When my children were 5 and 8 we moved into a ground floor flat and bought from the owner who was a mature woman.
After awhile the children had an imaginary friend called Leslie who was an old man!
They used to talk about him and one day his name appeared written on the inside of our garden shed with paint. The writing was very high up and very neat and even and both children denied writing.
I didn’t own any paint but there were old rusted tins and I got my father to remove them and take them to the tip. He said that the lids were firmly on and didn’t look like they had been opened in decades.
I put it down to the children having active imaginations about their imaginary friend but did tell them they must never open things like old hrs and cans. They continued acting indignant and saying that it was Leslie who wrote his name as they had told him that grandad had told them that the shed needs to be taken down as it was old and decrepit.
We had been their over a year when in the summer I was chatting to the other downstairs neighbour who was an elderly woman and was often in hospital so I didn’t see a lot of her. It was her physical health and she was very astute and always rational and ‘with it’.
I mentioned that my father was going to have someone come and dismantle the shed and she reminisced about Leslie loving his garden and was always pottering in his shed.
It turned out there was an elderly man called Leslie who had died in the flat in my children’s bedroom and his daughter had the flat gutted and new carpets and painted throughout etc and then sold it to me.
She said Leslie was a lovely man. I asked if she had ever told my children and she was adamant she hasn’t saying that she wouldn’t have wanted to frighten them by saying he had died in the flat and that she had never mentioned his name at all.
My children were adamant that they only ‘knew’ Leslie from seeing him in the flat and he was nice and smiled at them!
My children are adults now and have never wavered from saying they saw Leslie.
My point of mentioning this is that most people when they die are just normal people and that the supernatural is often confused with malice and sinister intent and if someone died in your bedroom there is no need to be disturbed or frightened.