Watching it via 'I Goog oil'. Number 3 kid looking out of his window to see if he can see smoke. For him, a little too close to home.
It seems that it hit a car before entering the building. Perhaps he wanted to arrive via the front door to make his statement.
Whatever the reasoning, if it can be called that, he did effect an extraordinarily efficient method of spreading the fire - with perhaps nothing but a combination of fuel and a newly forged air inlet.