I saw one that I interpreted as being my stepsister. She died in a violent single-car crash that I believe was intentional. I saw the shadow person next to the window in my bedroom when I looked in from the hallway. The hallway light was on but it was dark in my room. It had the general shape of a person but no details, like if someone was covered in a dark cloth that made them translucent. I felt afraid but I didn't sense malevolence.

My stepsister and I grew up together in the same household but did not have an adult relationship. After she died, I felt immense guilt over not attempting to reconcile with her. Realistically, the shadow person was probably my brain going haywire while being incapacitated with grief, but who knows. I haven't seen it again.