Adam LanzaActingCopy linkTelegramWhatsAppXFacebookEmailBornApril 22, 1992DiedDecember 14, 2012 (aged 20)Place of birthExeter, New Hampshire, USATMDBBiographyAdam Lanza was the perpetrator of the Sandy Hook Massacre on December 14, 2012. He killed 27 people (including his own mother) before shooting himself.