 The couple decided to travel with the now defunct Titanic Express bus service from Kigali to Bujumbura, a journey usually taking around seven hours, to introduce Charlotte to Richard's family.They crossed the border and reached the village of Kilima, only 18 miles from their destination, when the bus was ambushed from all sides by armed members of the FNL Hutu extremist group.They demanded money first, and then divided the passengers by ethnicity.