When militia fighters found Muammar Gaddafi and his inner circle hiding next to the drainage pipes, one of Muammar Gaddafi’s bodyguards threw a hand grenade at them, which bounced off the concrete wall and exploded in the midst of the leadership circle, killing Gaddafi’s Defense Minister Abu Bakr Younis, and spraying shrapnel that wounded Muammar Gaddafi and others, according to survivors of the incident whom Human Rights Watch interviewed.