The exploitation of the suspect’s phone is still ongoing and is beginning to reveal confusing motivations.
Investigators notably found two letters there where he mentioned “political grievances”, explained a Las Vegas sheriff’s deputy, Dori Koren.
Matthew Livelsberger discusses “questions about conflicts elsewhere” in the world and “national problems, societal problems”, as well as “personal challenges”, he detailed.
“We are the United States of America, the best country that has ever existed,” the soldier wrote in one of the letters. “But right now we are fatally ill and heading towards collapse. This was not a terrorist attack, but a wake-up call.”
The suspect also explains having organized an explosion because “Americans only pay attention to shows and violence”.
To explain his action, he cites trauma suffered during his military career.
“I needed to clear my mind of the brothers I lost and relieve myself of the burden of the lives I took,” he wrote.