The Boston brothers had a religious motivation. I think this bombing is ideologically motivated Left...Right...Anarchist--remains to be seen..but they're trying to stake out the 'good guys' position with the warning. I imagine that there are some of both sides who will excuse them, on these grounds...if they're ideological soulmates~This is reminding me of the Boston Bomber coverage when they released photos of the two brothers. They were identified in no time, iirc.
What makes you think these people didn't have money?Maybe stolen? Those RVs cost money.Someone somewhere will recognize this RV and notice that it's no longer sitting in their neighbor's yard...unless it was a rental. In which case, the rental agent will. Good Move! Reports I saw said license plates were removed.
People take RV's like that and set up in the woods to use for hunting and fishing camps, too.
All that being said...had they parked the RV on Wall St.----might have had an impact--Nashville?? Meh.