Charges against Derek Chauvin, the Minneapolis police officer who knelt on George Floyd's neck for several minutes, should be upgraded to first-degree murder, Floyd family attorney Benjamin Crump told CBS on Sunday.

George Floyd, who was 46, died last week after the encounter with the Minneapolis police officers. 

Chauvin was arrested and charged with second-degree manslaughter and third-degree murder last Friday, while the other three officers involved in the incident were fired but have not been charged.

George Floyd's younger brother Terrence echoed Crump's sentiment. He told ABC News that he wants the other officers charged as well.

In an interview with the media, Terrence said that he condemns the violent protests happening and wants everyone to know his brother stood for peace.

"My brother was about peace," he said. "He was a gentle giant."