Kylie Jenner has broken her silence following the "mass causality incident" at her boyfriend Travis Scott's concert, which left eight people dead and hundreds injured.The Keeping Up With The Kardashians star, 24, posted a statement on her Instagram story the day after the tragic incident at a park in Houston Texas, where rapper Travis, 30, performed as part of his festival Astroworld. She wrote: "Travis and I are broken and devastated.