(KPLR) - Federal and local law enforcement officers are investigating a series of church fires in north St. Louis city deliberately set by an arsonist. The front doors of six churches have been set on fire. Investigators believe the person responsible for the church attacks is under stress and is trying to send a message. An award is being offered for information that leads to an arrest. Tonight on The Pulse of St. Louis, we'll take a closer look at the targeted churches and the message religious leaders standing in solidarity against the attacks are sending to the community.