A cash reward of $1,500 is being offered for information leading to an arrest in a Murfreesboro arson investigation. The Murfreesboro Fire Rescue Department is trying to determine who tried to set a home on fire Monday. Fire crews rushed to a home in the 700 block of E. Castle St. just before 5 a. m. for reports of a fire with five people inside the house. Firefighters noticed damage to the vinyl siding and a strong odor of an accelerant. The damage was contained to the outside of the home.