The American tourist killed by a lioness at the Lion Park, outside Johannesburg has been identified as Katherine Chappell, a 29-year-old film special effects editor who was in the country to raise money for anti-poaching initiatives. Chappell - who worked on an Emmy Award-winning episode of Game of Thrones and had been based in Vancouver, Canada since 2013 - was described by her family as "brilliant, kind, adventurous and high-spirited".Her sister Jennifer wrote on Facebook: "Her energy and passion could not be contained by mere continents or oceans. She was very much loved and shared her love for life with those she met."We cannot thank everyone enough for the kind words and support. It means the world to us during this difficult time."Park staff said the lioness had been lying in a pride when Chappell and her tour guide drove past in a white 4x4.As Chappell took pictures on Monday, the lioness unexpectedly came pounding through an open window and mauled her.Yesterday, the tour guide, identified by Mailonline as Pierre Potgieter, 66, denied claims that he and his client had driven around the enclosure with their windows fully open."If that's what they're saying, that's not the case. Not at all," he said.The attack had been "dreadful", he said, adding: "I'm still in a shock and daze about it". ..