For nearly three years the Syrian city of Raqqa served as the de facto capital of the Islamic State Armed Group. Last year IS fighters were ousted by a US-led coalition air campaign. Now in the hands of the Syrian Democratic Forces-- part of the US-led international coalition-- the city is still experiencing the devastating death toll reaped by three years of IS control and the subsequent coalition. In this five-part series from Raqqa, Filip Warwick has this first report.