By Caitlyn Gribbin, ABC News
Marg Quon lost her son Kris to an overdose 18 years ago.
One winter night, Marg Quon wondered why her son had not come looking for his bedtime hot chocolate.
"He would always make a cup … before he went to sleep and he would spill it all the way from the kitchen down to his bedroom," Quon recalled.
But when Kris Quon's mother checked on him that July night, the 28-year-old was not breathing.







