Video shows police beating black man who died in US; heard screaming for his mom

The US city of Memphis has released video showing the January 7 traffic stop and police confrontation that led to the death of 29-year-old black man named Tyre Nichols. The video shows Nichols being hit by officers at least nine times without visible provocation. Nichols, who was kicked in the face, can be heard screaming for his mom.