The holdout juror in the Lindsay Clancy murder trial that ended in a mistrial has a history of domestic violence allegations, according to court documents seen by NBC Boston.  For more context and news coverage of the most important stories of our day, click here: nbcnews.com Every day, NBC News helps people understand what’s happening and why it matters — through fact-based reporting, meaningful conversations, and powerful stories. From its leading news broadcasts — TODAY, NBC Nightly News, Meet the Press, and Dateline — to NBC News NOW, the 24/7 streaming news channel, plus chart-topping podcasts, the NBC News app, and NBCNews.com, NBC News keeps audiences informed and connected to the stories shaping our world. NBC News. Reporting for America. » Subscribe to NBC News: nbcnews.to/SubscribeToNBC » Subscribe to Here's the Scoop podcast: nbcnews.com/heres-the-scoop-daily-podcast » NBC News App: apps.nbcnews.com/mobile » Breaking News Alerts: h...