Colin Gillis had just turned 18 when he went missing in 2012 from the small Adirondack town of Tupper Lake.  Home on spring break from SUNY Brockport, the aspiring doctor was excited to meet up with friends. We may never know what happened to Colin, but a series of unusual events led us to today: 12 years later, with more questions than answers. His family and friends all wonder what happened on that cold winter night.