A 14-year old boy has been killed in an ATV crash in Bethlehem.  State Police responded to Wood Creek Road yesterday and say the teen was riding a quad where his father was working on a course further into the woods.  Steven Palmer and the property owner went searching for Tyler when he hadn't been seen for some time and found him pinned under the quad.  State Police say it's believed Tyler tried to jump the ATV over a ramp, lost control, was ejected and pinned by the quad.  He was unresponsive and transported to Waterbury Hospital with life-threatening injuries.  State Police declared the accident as a fatal incident this morning.