Niko Terho takes TVLine inside the latest Grey's Anatomy tragedy, including how it will impact Lucas (and his love life) moving forward. The March 19 episode of "Grey's Anatomy" finally brought the moment fans have been dreading for months: after moving in with Lucas & Co. for hospice treatment last week, Katie Rogers has died. "I always had it in the back of my mind that it was going... [6758 chars]