Short Scary Story- Colonel Walker

My mother worked in a daycare that had taken over the wing of an old school and the building is notoriously haunted with the ghost of the school's name-sake and founder, Colonel Walker. The attic of the building was used as storage for the daycare and many people reported small, fairly unobtrusive events while being up there, things like boxes shifting around behind you, drawers opening on the other side of the room where you were, curtains suddenly moving, the feeling of someone else being in the attic with you. But the kids were the most in tune it seems. I know that lots of the kids talked about "the old man" at the daycare (which was staffed entirely by women), and I have definitely seen the kids react by all at once looking to the door as if someone entered the room when no one had. Personally, I always felt as if someone was walking directly behind me whenever I had to go from one end of the hallway to another and sometimes I would hang out in the kitchen waiting for my mom to finish up work for the day while I finished my homework or something, I often felt like someone was there with me (I spent a lot of time there, especially in the summer when school was out, helping around the daycare). The most famous piece of evidence of Colonel Walker's ghost was a picture taken at Halloween of all the kids in their costumes. Right in the back, standing behind the children and looking straight at the camera, is the watery and somewhat blurred face and upper body of an older man. Like, you don't even have to squint or tilt your head to make out that it is there. Now I know that it could have been some bleed from some other photos or something, but I think, given all the other evidence it seems they got the Colonel on camera.