Jurors in the Karen Read trial are hearing from witnesses who knew the victim, John O'Keefe, and seeing video from the bars in the hours before he died. Subscribe to WCVB on YouTube now for more: http://bit.ly/1e8lAMZ Get more Boston news: http://www.wcvb.com Like us: https://www.facebook.com/wcvb5 Follow us: https://twitter.com/WCVB Instagram: https://www.instagram.com/wcvb5/