This is one of those stories that just sits heavy. Niall Horan is opening up in a deeply personal way about the loss of his former bandmate, Liam Payne, and the lingering questions that have followed ever since the devastating moment of Liam's death. Of course, the two first met as teenagers on the X Factor, where they were grouped together alongside Harry Styles, Zayn Malik, and Louis Tomlinson into the iconic five-some One Direction. What followed was global superstardom, but also, as we've come to understand over time, immense pressure behind the scenes.