Darren Wilson Darren Wilson

A day after a grand jury chosenot to indict Ferguson police officer Darren Wilson in the shooting death of Michael Brown, Wilson spoke exclusively to ABC News' George Stephanopoulos and recounted the events of that fateful day in August.

Wilson told Stephanopoulos that Brown threw the first punch when he reached into his cruiser and hit him in the side of his face. Wilson denied witness reports that claimed he grabbed Brown and dragged him into the car because that would go "against any training taught to any law enforcement officer."

Protests erupt following decision not to indict Darren Wilson

Instead, Wilson said he reached out his window to grab Brown. "I was going to try and move him back and get out of the car to where I'm no longer trapped," Wilson explained. "I just felt the immense power that he had. The way I've described it is it was like a 5-year-old holding onto Hulk Hogan. That's just how big this man was."

Wilson confirmed in the interview that Aug. 9 was the first time he'd ever fired his gun on the job. When asked why he chased after Brown, Wilson said it wasn't his job to sit and wait, noting that he did pause to consider whether he could legally shoot Brown, who reportedly charged him in the street. Wilson eventually concluded that he had to. "If I don't, he's going to kill me if he gets to me," Wilson said. 

When asked if he would have acted the same way if Brown had been white, Wilson said there was no question. "I don't think it's haunting. It's always going to be something that happened," Wilson concluded. "The reason I have a clean conscience is because I know I did my job right."

Watch the clip below. More of Stephanopoulos' interview will air tomorrow morning on Good Morning America. What do you think of Wilson's comments?

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