Thursday night, the Dallas Police Department (DPD) used a bomb disposal robot with lethal force. After hours of negotiations failed, the police strapped a pound of C4 and a detonation cord to the robot, manoeuvred the robot near the suspect, and detonated, killing the 25-year-old suspect Micah Johnson. In a police statement issued on Saturday, the DPD named the bot used in this unprecedented operation -- the Remotec Andros F5 model.