Thread: CA. high school shooting leaves multiple people injured, suspect at large

"Law enforcement sources familiar with the investigation told NBC News they are looking into the possibility the weapon used in the attack was a "ghost gun" made from untraceable parts that can be found online or even produced with at home a 3-D printer."

"His neighbors and friends have largely described Berhow as a quiet, unassuming student who was active in varsity cross-country and his local Boy Scout squad, the Los Angeles Times, CNN, and the Associated Press reported."