Haunted tree by the roadside

A man told me that there was an old tree somewhere, a pear tree, probably right next to the road. But that tree seems to be haunted, it has some negative energy. Whenever he passed by the tree, he immediately sweated on his back and felt a burden as if he were carrying something heavy. He says that it happened to him and others that a car would pass by and that the car would stop suddenly, and that other people would get goosebumps, that animals would run away from that place. He says that he asked about that place and the tree and that a long time ago, during the first or second world war, some people were killed there and thrown into a hole and buried right next to that tree, and that is why there are such events there.