Here is a link to LA Times article. Perhaps jurors who admit to being "addicted" to social media and Internet research should simply be excused from jury service rather than risk a mistrial.
http://www.dailynews.com/general-news/20160424/california-jurors-misusing-the-internet-could-face-fines-up-to-1500
http://www.dailynews.com/general-news/20160424/california-jurors-misusing-the-internet-could-face-fines-up-to-1500