May 8, 2013 12:28 pm Finale Preview: “Grimm” Silas Weir Mitchell, David Giuntoli, and Bree Turner reveal cast members death on this seasons last episode of Grimm. The finale will air on NBC, May 21. US & World Videos 1:07 Britney Spears spotted as authorities respond to alleged hotel incident 2:15 Prince William and Kate Middleton ‘going through hell,' friend claims (report) 8:01 Lady Gaga's outfit changes, Rihanna's bold looks and more iconic Met Gala moments 1:59 TikTok's Maddy Baloy dead at 26: Gordon Ramsay and Tay Lautner pay tribute 3:04 Progress being made on demolition of overpass on I-95 in Norwalk