The Croy Street Exchange Building in Hailey was destroyed by fire on March 16, 2021. Author: KTVB Staff Updated: 10:43 AM MDT May 10, 2021 BOISE, Idaho — Investigators are still seeking whoever is responsible for an arson fire that occurred at the Croy Street Exchange Building in Hailey on March 16, and have increased the reward to $10,000. The Idaho State Fire Marshal's Office and the Bureau of Alcohol, Tobacco, Firearms and Explosives (ATF) are each offering $5,000 awards for information leading to the arrest and conviction of the person or persons responsible. Fire Marshal Knute Sandahl is urging members of the public to come forward with information they may have about the perpetrator of this crime by contacting the Idaho arson hotline at 1-877-75-ARSON. Tips may also be submitted by contacting ATF at 1-888-283-8477, ATFTips@atf.gov, or through its website.