Lucas Helder was a nice normal college student...until he started to get strange ideas that led him to setting off a series of several pipe bombs across the United States.

Sources:

1: https://www.cbsnews.com/news/mailbox-bomb-suspect-charged/

2: https://www.twincities.com/2013/05/15/minnesotan-in-2002s-smiley-face-bomber-case-could-finally-face-trial/
https://www.latimes.com/archives/la-xpm-2002-may-05-na-bomb5-story.html
https://www.nytimes.com/2002/05/04/us/pipe-bombs-at-mailboxes-injure-five-in-the-midwest.html
https://www.start.umd.edu/gtd/search/IncidentSummary.aspx?gtdid=200205030011
https://www.pbs.org/newshour/world/terrorism-jan-june02-pipe-bombing_05-07
https://www.postbulletin.com/news/bandmate-doesnt-think-helder-out-to-get-the-government
https://www.thesmokinggun.com/file/pipe-bomb-suspects-grungy-past
https://abcnews.go.com/US/story?id=91668&page=1
https://www.thegazette.com/crime-courts/jones-county-mailbox-pipe-bomb-victim-recalls-blast-20-years-later/