[JURIST] A soldier with the US Army [official website] was sentenced on Friday for his role in murdering an unarmed teenage Afghan civilian. Private Andrew Holmes was sentenced to seven years in prison [AFP report] as part of a plea deal that he agreed to on Thursday. Holmes pleaded guilty [JURIST report] to shooting the civilian, but pleaded not guilty to previous charges of premeditated murder and conspiracy to commit murder. Holmes also pleaded guilty to one count each of…