A 13-year-old boy has been arrested after a shooting at the Sao Jose Institute in Rio Branco, in Brazil's Acre state, left two staff members dead and two other people injured, including a student.Local authorities said the attack took place at the school in northeast Brazil on Tuesday.Witnesses said students tried to escape over a wall as gunshots were heard and people fled to the roof of the building.The state government said the boy's legal guardian, who owned the firearm allegedly used in the attack, was also arrested.It said classes were suspended for three days across schools in Acre and... [Continue Reading]