the unit’s sniper, Nicholas Slatten, opened fire on a car which, according to the defence, had approached the Blackwater vehicle in a suspicious manner. Slatten’s shots, which killed the car’s driver, a medical student, triggered chaos throughout the circle.In addition to Slatten, who was convicted of first-degree murder, a total of six members of the Blackwater team fired their weapons as they moved through the circle, according to the prosecution.One team member, Jeremy Ridgeway, pleaded guilty to one count of voluntary manslaughter in 2008 and served as a prosecution witness in the case. Charges against another defendant were dropped shortly afterwards. Several other team members also testified against the defendants.Aside from Slatten’s conviction, three other guards Wednesday were found guilty of voluntary manslaughter, as well as various weapons offences.