I too think there is a group behind this, oscillating between an ideological group vs. a money mafia. And if ideological, I think the group would be in the US, and this guy is their hitman. But let’s see what comes out.I originally thought we might have one here. A serial killer who sees himself as some sort of “Dexter” vigilante justice type (I can hear the groans from here!)…
But I continue to think there is a group behind this, someone from overseas, and we may see other similar types of attacks on the wealthy/powerful.
Many other theories in this thread also make sense.