My question involves personal property located in the State of: Florida
Hello all, I'm new here and this will be my first post, however probably not my last as these forums seem to contain a great wealth of knowledge useful to me. I very much need advice on this matter as I may be arrested for it within the next 5 days. I am sorry for the length of this post as well, but It's the best way I can describe the situation at hand.
I'll start off with the background. I used to live in a house owned by my grandmother however I moved out of it a few years ago. My uncle proceeded to move into the house. About 5 or 6 months ago the house was foreclosed on and auctioned off, and he left obviously. He took most of his belongings with him but left a lot of random junk behind. About two or three months ago I talked to my uncle and told him I had planned on picking up a few things from the house including some things that used to be mine. He informed me then that they(he and his family) weren't going to be getting anything else out of the house and that was fine. A few days later I went to the house and proceeded to scavenge some of his left behind belongings. A few days later I saw him out and about and talked to him telling him I had been by there and grabbed a few things. He then told me there were a few things they left that they wanted to go back and get. I told him okay if theres anything missing that you left just come by my house and ask me and I'll tell you if I have it and give it back. He acknowledged that and was fine with it. After that he never came by or asked me for things missing. Fast forward to a week ago from today. He called me wanting to know if I took an old laptop from the house and a dog kennel. I told him no I didn't see any laptop but I did get the kennel. He said okay and came to my house to get it. When he got here he noticed I had some heaters I had taken from the house as well as the kennel and wanted them back so I said okay thats fine and gave them back. He then told me nothing in the house belonged to me and I shouldn't be over there period. I told him that I was just salvaging anything left behind before the bank threw everything away, and once again mentioned that If he was missing anything, to just ask me. He said okay and told me to ask him before I took anything else from the house and I said okay. I have not been back to the house since then. Yesterday he came to my house(whom I share with his brother) so he has free access to my residence. He came inside and went through all of my belongings while I was gone, taking back what I salvaged from his house. He also went rummaged through a toolbox(also salvaged from house) on my truck and inside of my truck(though I didn't see him in the truck itself I saw things had been gone through) although I was there when this happened I only caught him as he was going through the toolbox. So I called the police and they came and pretty much said there wasn't anything I could do about any of this unless I saw him actually in the cab of my truck. This morning he came by my house and noticed a book of his from his old house sitting in my truck and took pictures and called the police on me for theft. He had an invoice from amazon.com saying that he had purchased the book. So the police came by and told me they gave him a card which he could take to the district attorney? i think and have them get an arrest warrant for me for theft of the book and toolbox on my truck and possibly the items he recovered from my residence. They said he had 5 days to decide whether or not to take the card and get the warrant for my arrest.
My questions are is this a legitimate claim? That I "stole" the items left abandoned in the foreclosed home for almost half a year? Does the bank own the items or does my uncle still own them? Was I breaking any laws by doing this? The officer that talked to me this morning said that even though the items were left there they still belonged to my uncle and I did in fact steal them. Is there anything I can do about this?
I thank you very much ahead of time for any help that you all may be able to give to me on this matter. I appreciate it, I really do.

