As the investigation into the deadly firefighter ambush in Idaho over the weekend continues, police are still trying to piece together why suspect Wess Roley allegedly instigated the attack, a source familiar told ABC News.

Wess Roley, 20, was living out of his vehicle and his former roommate said he shaved off his long hair and started to "kind of go downhill.”

Frank Harwood wore many helmets: firefighter, national guardsman, and Neenah High School football player. Harwood lost his life in a shooting attack in Idaho last weekend. Neenah activities director Mike Elkin was Harwood's football coach when Harwood was a Rocket,