One Intends Natural Consequences of Act

Although intent may be an ingredient of the crime of arson, it may be inferred from the acts of the accused. There is a presumption that one intends the natural consequences of his act; and when it is shown that one has deliberately set fire to a building, the prosecution is not bound to produce further evidence of his wrongful intent. (People v. de Leon, G.R. No. 180762, March 4, 2009)