un secretary general, kofi annan, has been flown back to his native ghana. the casket with his remains, draped in the blue un flag, was received by numerous dignitaries. a state funeral will be held for the nobel peace laureate on thursday where many world leaders, past and present, and royalty are expected to attend. the war in sri lanka ended in may 2009 with the defeat of the tamil tiger rebels. but the country is still struggling to come to terms with its past. tens of thousands of people were killed and many others went missing. their relatives have been holding protests seeking answers. the bbc‘s anbarasan ethirajan, who reported there during the conflict, went back to see what has changed for the minority tamils. kolinochchi, the former tamil rebel stronghold in northern sri lanka. i was here, at the height of the conflict, ten years ago and the place was in ruins. today, it is a bustling town. these people want answers