The latest on the shooting of a black teenager by a white Chicago police officer. (All times local):
2:15 p.m.
The white Chicago police officer charged with murder in the 2014 shooting death of a black teenager emptied his 9 mm pistol of all 16 rounds.
He was on the scene for just 30 seconds before he started shooting and he opened fire just six seconds after getting out of his vehicle. He continued firing even though 17-year-old Laquan McDonald dropped to the ground after the first shots.
Cook County's top prosecutor provided those details Tuesday after announcing the murder charge against Officer Jason Van Dyke.
The city has a Wednesday deadline to release squad-car video showing the shooting.
State's attorney Anita Alvarez said of the video: "it is graphic, it is violent, it is chilling." She added that it will "tear at the hearts" of Chicagoans. But she appealed for calm, saying she wants young people to know that authorities are listening to their concerns about policing and justice.
