Normally, investigators start at the least-damaged area of a building and work toward the most damaged spot to pinpoint where the fire began. Once they discover that, they can ask the property owner what was located there and pinpoint a cause, Mieth said.
But that process was difficult in this case, prompting officials to offer the reward, she said.
"Given the fact that the building is unoccupied and there were no obvious witnesses to the fire, they are asking for the public's help," she said.
Investigators completed their site work Friday and are now reviewing timelines and other information, Franklin Fire Capt. Stephen Parchesky said.
Read more: http://www.milforddailynews.com/archive/x1890541379/Cause-of-Franklin-temple-fire-still-unknown#ixzz1K3PSXf1K