Campinas massacre

Around 23:50 BRST on 31 December 2016, a man named Sidnei Araujo entered a home where a New Year's party was taking place and opened fire at the gathering with a Walther P5 9mm semi-automatic handgun. Araujo killed 12 people, including his estranged wife and his eight-year-old son, and wounded three others before committing suicide by shooting himself. Although the crime is under investigation, the motive is believed to be anger over separation with his wife. A recording of Araujo was later found in his car in which he apologized for something that would happen, without indicating specifically what it would be.