The arsonist was enjoying watching the firefighters desperately putting out the fire.

The police are cornering the arsonist.

My favorite game is Touhou.

He decided to start a new life in a foreign country.

He was arrested for the crime of arson.

In his rage, he set fire to his own house.

He is widely recognized as an expert in positive law.

The illegality of that act is clear.

That act is clearly illegal.

That act is clearly illegal.