I always was able to see and sense things, including a man that stood in the middle of the hallways at my own house. I could see him every once in a while and I always thought he was my dad until well he moved out, so here's what happened.
Ever since I was five or six, I could see a man out of the corner of my eye in the hallway staring at me, and so I thought it was my Dad waiting for me to go to bed so I ignored it for years. Then about a year ago, my mom and dad got a divorce so my dad moved out. Then the night he moved out, I saw the man again, that freaked me out. Then I didn't see him for a long time until about 2 months ago.
I was doing my homework at the kitchen table, so my sister could play in my room, when she ran down the stair in a fright, I asked what was wrong and she told there was a man in my room staring at my tv and then at my bed. So I cautiously with a knife in my hand walked up the stairs and peaked into my room and sure enough there was a man.
But instead of looking dangerous he looked kind of troubled, so I hid the knife behind my back and asked him who he was, he looked back at me and I shivered because he had a bruise on the side of his face. He pointed to the tv which by the way was really dusty and wrote the name Sam in the dust. I turned and looked at my sister who was behind me, then I turned and he was gone.
But of course when my mom came home, sister and I told her about what happened she got angry at me telling me not to put things into my sisters head. I told my grandma and she seemed interested, she came over and saw the name in the dust, she said I believe because you don't write like this, she hugged me, and plus I saw "Sam" last night though now I'm not as scared of him.
The man in your house doesn't seem to mean no harm, just lost. Possibly doesn't even realize he has passed. The brusing is possibly the cause of how he died. He is trying to communicate with you. Having his name is a good start. Perhaps in the future you will be able to get him to go into the light where he belongs.