On January 16th, 2014, a wildfire broke out in the San Gabriel Mountains and quickly spread through the Angeles National Forest. The 2,000-acre wildfire destroyed six homes and damaged many others. One of the most challenging crimes to investigate is arson, especially wildfire arson. We speak with Captain Russel Tuttle with the United States Forest Service. Tuttle breaks down the methods of federal arson investigators and their meticulous approach to determining not only the origin and cause of a fire, but also who started it. We get a behind the scenes look at the entire Colby Fire investigation. This is part of our ongoing ‘Crime Fighter Series’ which highlights the people, agencies, and technology responsible for solving crime.