“Whoever did this knew what they were doing,” said Kris Concepcion, a fire authority battalion chief. Also, the fire traveled 3 miles in its first 20 minutes when it was ignited about 6 p.m. Sunday, he said.
A ten year old can tell wind direction, and speed. The statement is meaningless.
From what I have seen via the local coverage, there was a liquid used to start the fire and some type of 'troughs'. The reason they downgraded from 3 start points to 2 start points is that they determined the trough of liquid that went to a third spot apparently was not involved with the initial fire. Perhaps a spilling of the liquid. Apparently this was a very sophisticated arson. Very rare for the fire department to hint that the perb 'might' be a fireman. Based on these MSM reports we should probably conclude that they were either a fire/arson professional or that they had experience/training setting fires.