Connecticut school shooter Adam Lanza learned everything he knew about firearms - and obtained the ones he used in Friday morning's massacre - from his mother.
Adam's mom, Nancy Lanza, became his first victim that fateful day.
An avid gun collector, she reportedly bragged to friends and neighbors about her weapons and took her son to several firing ranges to teach him how to shoot.
All in the months leading up to Adam murdering 27 innocent people.