Arson ruled in fire that destroyed St. Leo Church in Northeast Phila. Firefighters battle a blaze at the former St. Leo the Great church in Philadelphia's Tacony section as area residents and former parishioners watch, May 9. The former worship site, which closed in 2018 following a parish merger five years earlier with Our Lady of Consolation, was completely gutted. (Gina Christian) By Gina Christian • Posted May 13, 2021 UPDATED — Catholic residents of a Northeast Philadelphia neighborhood continue to mourn the loss of a church once known as “the heart of Tacony,” destroyed in a May 9 blaze that federal investigators have now ruled the result of arson.