The white gunman who killed three Black people at a Dollar General store in Jacksonville, Florida, over the weekend wore a Rhodesian army patch on his tactical vest, law enforcement sources say, a reference that has been used before during white supremacist attacks.

The patch — representing Rhodesia, a former white minority-ruled territory in southern Africa in the 1960s and ’70s that would become Zimbabwe — is yet another symbol of how the shooter, Ryan Palmeter, was racist and was influenced by racist ideology, investigators say.