Boston January 19, 2018 4:19 pm Vegas Gunman Researched Boston Locations Stephen Paddock, who opened fire and killed 58 people in Las Vegas last year, had researched multiple locations in Boston before the mass shooting. US & World Videos 1:20 Gigi Hadid wows in sweeping Met Gala look 1:52 Amanda Seyfried reveals her kids' reaction to her daring metallic Met Gala look 1:34 Nicole Kidman floored over Olivia Rodrigo's AMC ad tribute 1:12 Ariana Grande channels Glinda at 2024 Met Gala 1:02 20% of nurses to leave field within 2 years