Authenticate Haunted Photos & Videos

My friend believes his apartment is haunted and I have a folder full of “evidence”: high-resolution stills that show misty silhouettes and several smartphone videos in which faint children’s laughter drifts through an otherwise empty room... (Budget: $30 - $250 USD, Jobs: Adobe Audition, After Effects, Audio Editing, Digital Forensics, Photo Editing, Video Editing, Video Production, Videography)