A Florida man has been charged with threatening a mass shooting after his ex-girlfriend alerted authorities to text messages he had sent her. The Volusia County Sheriff’s Office said in a statement that 25 year-old Tristan Scott Wix of Daytona Beach had sent several messages about a possible shooting, writing in one that “a good 100 kills would be nice” and claiming he already had a location planned. In another message, police said, Wix wrote: “A school is a weak target..