CHICAGO – Jason Van Dyke, the Chicago police officer accused of fatally shooting Laquan McDonald, was found guilty of second-degree murder and 16 counts of aggravated battery on Friday, ABC7Chicago reported. He was found not guilty of official misconduct.

Ahead of the verdict, Judge Vincent Gaughan warned people in the courtroom to contain their outbursts, telling them: “If you do act out, I will have you arrested.”

“Look into your heart and control your emotions,” he said. “This will not be easy for anyone on either side.”

After the verdict was read, protestors who had gathered outside the courthouse cheered and clapped. Some chanted “justice has won.”

Shortly afterward Van Dyke’s bond was revoked and he was remanded to custody.

Laquan McDonald

Jason Van Dyke, the Chicago police officer accused of fatally shooting Laquan McDonald, was found guilty of second-degree murder and 16 counts of aggravated battery. (Screenshot ABC7Chicago broadcast)

McDonald was shot 16 times in 2014. The shooting was captured on police dash camera video and sparked years of racial tension in the Illinois city. The trial has polarized Chicago and garnered national attention over how to police minority communities.

Van Dyke was charged with first-degree murder, 16 counts of aggravated battery and one count of official misconduct in McDonald’s death. The judge also told jurors they could consider second-degree murder.

Prosecutors argued that the veteran police officer lied multiple times about the threat he claims McDonald posed and say a dashcam video proves it.

“You’ve seen it on video,” prosecutor Jody Gleason said. “He made it up.”

Van Dyke’s attorneys painted McDonald as a dangerous teen who refused to drop a three-inch retractable knife he’d been carrying the night he was killed.

Defense attorney Daniel Herbert told jurors McDonald was an “out-of-control individual who didn’t care about anyone,” and argued that his client was a “scared police officer who was fearful of his life and the life of others.”

In a risky legal move, Van Dyke took the stand in his own defense and testified that McDonald was a threat from the moment he saw him.

“His eyes were bugged out – just expressionless, and he turned his torso toward me,” Van Dyke told jurors during his 90-minute testimony.

Van Dyke joined Chicago Policed Department in June 2001 at the age of 23. He told jurors about his early assignments as a beat cop and testified he never fired his weapon before the night he shot McDonald.

“I’m very proud of that,” he said.

Van Dyke said he and his partner, Officer Joseph Walsh, noticed McDonald walking down the street with a knife in his hand. Van Dyke said he thought McDonald dropped his knife and was “greatly relieved.”

But then things escalated quickly, he told jurors, asserting that McDonald was “advancing on me.”

“His face had no expression, his eyes were bugging out of his head. He had these huge white eyes just staring at me,” Van Dyke said, adding that McDonald was about 10 to 15 feet away by this point.

Van Dyke claimed McDonald waved the knife toward Van Dyke’s shoulder. It was then that the officer opened fire.

“Eventually he fell to the ground,” Van Dyke said. “Once I recognized he fell to the ground, I stopped shooting.”

However, prosecutors challenged his account of McDonald raising a knife before being shot, Fox News reported.

“You’ve sat here for several days. Where do you see it on the video?” Gleason asked Van Dyke. When he replied that the video didn’t show his perspective, Gleason showed Van Dyke an animation created by his own defense team. Van Dyke said he didn’t see his perspective on that model either, however.

The defense also called a pharmacology expert who claimed McDonald was “whacked on this PCP.” James O’Donnell testified that McDonald was more vulnerable to hallucinations because he didn’t take his prescribed medication – an antipsychotic and a mood stabilizer.

Van Dyke said he shot McDonald 16 times because the teen swung a knife at him. Grainy dash cam video showed McDonald holding a knife at the side of his body, about 15 feet away from VanDyke, and walking away from him and other officers who’d responded to a report that the youth was trying to break into vehicles.

McDonald fell to the pavement less than two seconds after he was shot. Van Dyke continued shooting for another 12 seconds, emptying his 16-shot semiautomatic handgun.

Prosecutors, who rested their case Sept. 20, called the 2014 killing “completely unnecessary” and argued that race had been a factor in the brutal incident. They claimed that on the night McDonald was shot and killed, the only thing VanDyke saw was a “black boy walking down the street” who had the “audacity to ignore the police.”

Eury Patrick, the prosecution’s expert on deadly use of force by the police, testified that Van Dyke kept shooting “long beyond the point of being reasonable.”

“They’re not trained to just empty their gun,” Patrick said. “It’s not a knee-jerk reaction. They’re trained to shoot until the risk is ended.”

Witness Jose Torres told jurors he heard more gunshots after McDonald fell than before.

“I’m not going to use the word, but I said, ‘Why the “f” are they still shooting him if he’s on the ground?’”