On November 29, 2009, Gregory James Richards, Mark Joseph Renninger, Ronald Wilbur Owens, and Tina Gail DeLong-Griswold were sitting in a coffee shop. All four were police officers, on duty and in uniform. Maurice Clemmons entered the shop and fatally shot each of them with a handgun. Gregory, Mark, Ronald, and Tina left behind a total of nine children.