an evil spirit?

Okay, I have a question. Is this a ghost? An evil spirit? or something that has been brought on because of the animosity in our family recently?(see prayer request on that one)

Either way~~~how do you get rid of it?

In the house I live in now....we just bought it last spring. We have alot of strange things that happen in it.
In my sons room particularly. His door locks.... Someone knocks on it.... It opens by itself..... Someone knocks on our front window. I look, I get up, I say, "who's there?"

SCARY:: My bed "un-made" itself after I had just made it up one morning~~and I was in the bedroom when it happened with my back to the bed, putting on my makeup. I ran outta the house and didn't go back in for the whole day.....................

Our fireplace was burning one morning---and noone had set it up! As a matter of fact, it came to a fiery BLAZE the moment that I walked by it!

Gosh---so many more things have happened. My dogs for example bark and bark into the corners of the rooms! ETC, ETC.

Now nothing has ever happened in the kitchen, or my upstairs.

But the back bathroom.....YES. My oldest son was showering and had his clothes laid out. When he got out of the shower his clothes had been laid out in the floor in a straight line down into the bedroom! I was in the shower and I was washing my hair, I heard someone running into the bathroom--so I yelled out, "john?" but noone was there. I assumed it was my husband. I looked around, but noone. I know someone was running. I heard them. Its always something. Everyone is hearing or seeing something all the time in our house.

The family that lived here before was caring for their old uncle who was dying of lung cancer. He was on oxygen and I believe he died in my sons room. Noone would tell me the absolute truth about it. There was a terrible stain in my sons room on the floor. I asked about it and was told it was blood, then they changed the story and all laughed. (the realtors and my husband....) He said, "oh we were just joking with you..." He would never tell me the truth if someone did die here. He told me first of all that the uncle killed himself in that room. then when I freaked out and said that I couldn't live here, he changed the story. So I dont know what to believe now. But there are strange things going on in this house I promise there are, and they are real as can be.

Many times Ive actually RAN outside...........and couldn't get myself to go back in.

So is this his spirit? is this a demon??? what is this thing???? anybody got a clue????