‘This Is Us’ Cast on How They Reacted to Jack’s Deathhttp://bit.ly/VarietySubscribeSpoiler alert: Variety may have accidentally broken the news of Jack’s death to “This Is Us” star Chrissy Metz. Apparently, “she doesn’t read ahead.” Oops.While we got to see Metz’s reaction firsthand, we asked the rest of the cast — Justin Hartley, Sterling K. Brown, Mandy Moore, and Jack himself, Milo Ventimiglia — how they reacted to Jack’s death.“It’s sad,” said Brown. “It is fitting — I’ll say this — with the way in which Jack lived his life, right? The way in which he expired.”