DETROIT — Patrick Lyoya was a “quiet kid” who didn’t like to fight, according to his father.

Peter Lyoya said his son, a 26-year-old Congolese refugee, “made a small mistake” earlier this month. Then he was fatally shot in the back of the head by a Grand Rapids police officer.

More details were emerging Thursday about Patrick Lyoya’s death after police released video of the fatal traffic stop. It shows Lyoya, who is Black, was shot by a white police officer after a struggle. The traffic stop happened April 4.

The name of the officer has not been released, and no charges have been issued. The officer, has been put on administrative leave, said Grand Rapids Police chief Eric Windstrom.

At a Thursday press conference, Lyoya’s mother, father and younger brother joined Ben Crump, the family’s attorney, to speak about the video and Lyoya’s life.

“Patrick Lyoya immigrated to the United States from the Democratic Republic of the Congo to pursue the American dream and provide a better and safer life for himself and his family,” Crump said. 

“Instead, what found him was a fatal bullet to the back of the head, delivered by an officer of the Grand Rapids Police Department.” 

In the video released by police Wednesday, Lyoya is seen struggling with the officer and attempting to grab his taser before the officer pins him down to the ground and shoots him.

“It was the most horrifying thing I’ve ever seen in my entire life,” Thomas Lyoya, Patrick’s brother said Thursday.

THE VIDEO:Police release video of fatal shooting of Patrick Lyoya 

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Here’s what we know:

How did the traffic shop and shooting unfold in Grand Rapids?

The video includes a compilation of footage from police dash cameras and body camera footage, a home security camera and a cell phone video. It depicts a Grand Rapids police officer pulling over Lyoya and a passenger for a “license plate that doesn’t match the car.”