Los Angeles was witness to yet another act of police brutality this weekend in the tragic death of black teenager Carnell Snell Jr. The details of the story are still emerging, but one especially painful fact is clear: Carnell's younger sister watched her brother be killed.

According to The Independent, officers say the shooting occurred after they discovered Carnell was traveling in a car with a paper license plate. Cops pursued Carnell in said car, and allegedly shot him five times once he got out of the car, and attempted to flee.

Carnell's sister, Trenell, was nearby, heard the gunshots, and witnessed the end of the horrific incident. "At the end of the day, the cops came and shot my brother," she told reporters. "Killed my brother."

Carnell's mother, Monique Morgan, has asked to visit her son's body, but apparently the police have refused. "I got a phone call saying police shot him five times in the back," she told ABC, amidst pleas to see Carnell.

Protests have begun in the wake of Carnell's death, with a crowd growing around the police-taped area where Carnell was killed. As the L.A. Times, Carnell is remembered as "a respectful young man who enjoyed skateboarding and cared deeply for his family," and neighbors and relatives are shocked by this loss.

We will update this post with more information as it becomes available. Until then, please read Teen Vogue contributor Lincoln Blades on 10 things you can do to help Black Lives Matter end police violence.

Related: A Police Offer Got Fired After Posting a Racist Snapchat