A 15-year-old student opened fire at his high school in the American state of Michigan, killing four students and injuring seven on Tuesday.Local government lawyers announced Wednesday that the student, Ethan Crumbley, will be charged with murder and terrorism.The young suspect is accused of firing a semi-automatic handgun in the shooting at Oxford High School.It is about 48 kilometers north of the city of Detroit.The gun was purchased four days earlier by his father.Oakland County prosecutor Karen McDonald said the shooting should bring attention to the need for new gun laws in the country.She asked "How many times does this have to happen? How many times?"The four students who were killed were 16-year-old Tate Myre, 14-year-old Hana St. Juliana, 17-year-old Madisyn Baldwin and Justin Shilling, who died Wednesday.Six students between the age of 14 and 17 remained hospitalized with gunshot wounds.A teacher was also injured in the shooting.
