Desperately trying to find Nina, Marco meets Theo on the mountainside where Theo sets his dog onto Marco. When Marco demands to know what's happening, Theo explains only "You killed her." Not knowing about Theo's daughter, Marco starts to panic about losing Nina.
Marco was desperately searching for Nina when he met Theo on the mountain. Theo released his dog to attack Marco, and when Marco questioned the situation, Theo simply said "You killed her." Marco, unaware of Theo’s daughter, became concerned about losing Nina.