Adam
Lanza was the perpetrator of the December 14, 2012 massacre at Sandy Hook Elementary School in Newtown, CT, in which he killed 27 people and injured at least 20 more. After killing students and administrators, he commited suicide. His brother, Ryan Lanza was taken into custody for questioning. Adam Lanza's mother was a teacher of that school. Lanza's mother was murdered by her own son, Adam Lanza in that massacre.