[Uri’el-2012]

Detained suspect is from Germany. Entered the U.S. from Canada.

Baader-Meinhof Group ?

[Strategerist]

Eh, the Red Brigades were a pretty long time ago.

As a guess I’d go with radical Eco-terrorism, especially the focus on cars.

[shhrubbery!]

He looks like an ethnic German to me, or Caucasian European of some sort.

Could be Baader-Meinhof, or maybe an Earth-Firster type, i.e. a person who has violent tendencies and grabs onto a Leftist political "cause" to justify his behavior.

Otoh the article says he has some kind of "immigration" issue with a relative.