Of course he did. Right after lil bro ditched classes at UMass-Dartmouth, and scored some fine road trip choom, they were going to jump into big (now dead) brother's Mercedes sedan, pay a fortune in gasoline, then kill more infidels in the Big Apple with crock pot EIDs, and probably catch an international flight back to Chechnya. Because everybody can afford to do that on a welfare check.
Total lone wolves. Nothing to see. Move along, citizens.