| Campinas massacre | |
| Location: | Campinas, São Paulo State, Brazil |
| Time: | Around 23:50 |
| Timezone: | BRST |
| Type: | Familicide Mass murder–suicide |
| Fatalities: | 13 (including the perpetrator) |
| Injuries: | 3 |
| Perp: | Sidnei Ramis de Araujo[1] |
| Weapons: | Walther P5 9mm semi-automatic pistol[2] |
| Motive: | Uncertain |
Around 23:50 BRST on 31 December 2016 (1:50 GMT on 1 January 2017), 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.[3]