Horrific video has emerged showing the moment a Las Vegas showgirl was knifed to death in the street in her red feather outfit during a mass stabbing. Maris Mareen DiGiovanni, 30, was killed in the October 2022 rampage along with Brent Hallett, 47. Prosecutors say Yoni Barrios, 34, is responsible for their murder as well as injuring six others, many of them showgirls.