Today's Valley News Dispatch has a front page story "Arsonists start young" discussing the progression of arson by children. There is also a story in the paper, "Motive may be tied to age of arsonists," on the differences in motivation of young arsonists and older arsonists.
The Summit Hose Company has some pictures of Tarentum's arson fires. The top pictures on that page are of a non-arson fire that happened this morning. Scroll down to see the photos from the arson fires. (HT: ~ZAK~)