WHAT’S HAPPENING: FBI hopes Vegas billboards bring in tips

Clark County Fire Department engineer Brian Emery stands by one of his agency’s Mass Casualty Incident vehicles in Las Vegas on Thursday, Oct. 5, 2017. Emery was driving a traditional fire engine the night of the shooting when his crew wound up being among the first on duty emergency workers to arrive at the scene on Sunday. The four members of the crew treated some 30 people with a range of injuries from shortly after 10 p.m. until after sunrise Monday. A gunman opened fire on an outdoor country music concert on Sunday killing dozens and injuring hundreds. (AP Photo/Anita Snow)