Las Vegas Cybertruck bomber Matthew Livelsberger “preyed” on his first wife and mocked her struggles with depression — years before he shot himself in the head and blew up his explosive-laden vehicle,

Matthew Livelsberger texted his ex out of the blue days before the explosion in Las Vegas on New Year's Day. DENVER — Alicia Arritt had no inkling that her ex-boyfriend was planning to blow up one of the swankiest hotels on the Las Vegas strip.