On July 7, 2016, Black Lives Matter supporter Micah Xavier Johnson ambushed and fired upon a group of police officers working a Black Lives Matter protest in Dallas, Texas. johnson murdered five police officers and injured nine others in the shooting.

The deceased officers were veterans and fathers: From top left clockwise, Brent Thompson, Patrick Zamarripa, Michael Krol, Lorne Ahrens and Michael J. Smith.

The National Football League refused to allow Dallas Cowboys players to honor the slain officers with helmet decals.

Sports Day reported: