Update (2006ET):

Update (1801ET):

The details surrounding Cybertruck bomber Matthew Livelsberger continue to drip - with two 'manifesto' letters found in the Cybertruck itself, and another 'manifesto' he allegedly emailed to retired intelligence officer Sam Shoemate.

In the letters found in the Cybertruck, Livelsberger described the USA as "terminally ill," and said his actions were meant as a "wake-up call," and not a terrorist attack.