Crime / Murder Documentaries » Fascinating look into the scientific work that is being conducted today to better understand the mental make-up of a mass shooter / spree killer ... Noted cases mentioned in the documentary include: Charles Whitman (The Texas Tower Sniper); Charles Andrew Williams (The Santana High School shooter), Eric Harris & Dylan Klebold (The Columbine Killers); Adam Lanza (Sandy Hook Massacre) and James Eagan Holmes (Aurora Theatre Shootings)