Susan Owen has represented thousands of people in the past few years in some of the nation's largest mass torts, including victims of sexual abuse at the hands of a University of Southern California campus gynecologist and victims of a gunman's mass shooting at at the Route 91 music festival in Las Vegas. Owen, the managing partner of Owen, Patterson & Owen, also played a leadership role in this week's $1.8 billion settlement with Southern California Gas over a 2015 gas leak in Los Angeles.