The FBI determined he did not INTEND to be a terrorist.
of course not ...
he was standing at the bus stop and put down his pressure cooker as he waited for the number 666 bus...
then he got distracted by his worries about the risk of his safety from radical American patriots and got on the bus and left his loverly bomb on the sidewalk...accidental like...and unintentional...
the waves of risk coming from those same radical American patriots vibrated so much the bomb went off...