The writers of this show jump from one subject they don't know anything about to another. The way Phantom burns buildings (no casualties, condemned buildings, etc) is a class A misdemeanor in New York. Even if his case was heard by the worst jury and the most idiotic judge, he would MAYBE get three years in jail. Usually though he would walk free. Murder is potentially a death penalty crime. Why would he risk murdering the brave fireman who was "hunting" him to save himself from a wrist slap?
The way they portrait pyromaniacs is digusting and absolutely unbelievable. Those people don't stand there breathing heavily watching a fire. They climax for them is STARTING a fire, not watching it. So when one of the characters says the fireman "showed him some photos", that's just disgusting and stupid. Photos of fires do nothing for pyromaniacs.
All-in-all, typical tv-series in the sixth season. Didn't expect it to last this long, don't know what to do and where to go from here.