An Army soldier who died in an explosion of a Tesla Cybertruck at the Trump hotel in Las Vegas left a note saying it was a stunt to serve as a “wake-up call” for the country’s ills, investigators said Friday. Matthew Livelsberger, 37, a Green Beret from Colorado Springs, Colorado, also wrote in the note that he needed to “cleanse my mind” of the lives lost of people he knew and “the burden of the lives I took.” Livelsberger apparently harbored no ill will toward President-elect Donald Trump, Las Vegas Metropolitan Police Department officials said. “Although this incident is more