Who is Las Vegas Shooter Stephen Paddock?

Stephen Paddock lived in a tidy Nevada retirement community where the amenities include golf, tennis and bocce. He was a multimillionaire real-estate investor, recently shipped his 90-year-old mother a walker and liked to travel to Las Vegas to play high-stakes video poker. NBC Bay Area Senior Investigative Reporter Vicky Nguyen reports in a video that first aired on Oct. 2, 2017.