21-year old Maura Murray disappeared the evening of February 9, 2004, after crashing her car on Route 112 in Haverhill, Massachusetts. A nursing student at the University of Massachusetts Amherst who was loved by family members, Murray left campus early that afternoon after packing her car and emailing her professors and work supervisor that she was taking a week off due to a family emergency. No family emergency existed.
In 2011 videos began appearing from a Youtube user named 112dirtbag (referencing the location where Maura disappeared, as well as her father calling those involved in her life at the time of her disappearance 'dirtbags'.) On the 8th anniversary an extended video of the uploader appeared with him maniacally laughing and the message 'Happy Anniversary'.
Similar videos show the uploader sitting near the location of the crash, and a video showing stubs from a local lodge during the period shortly after her disappearance.
The most likely theory is that 112dirtbag is simply a mentally unwell person with a YouTube channel seeking to gain attention from Maura Murray's disappearance.
The videos shortly disappeared from the uploader's page, along with the entire YouTube channel being terminated, but some have been archived: