disturbing dream

Had a disturbing dream where I saw a small child climb a tree to very near the top. And as I saw that I was walking past. A part of me felt I should tell somebody but I didn’t. Not sure why. And then a few seconds later I looked behind me at the baby and saw her fall to her death. Her parents were mortified and there was nothing that could be done. I hear another bystander say her neck was cut open.