Signs of gratitude and heartache line this street where Deputy Sergeant damon gutswiler lost his life and he was ambushed with gun fire and improvised explosive devices responding to a 911 call saturday afternoon. Its very important for his memory that we get this case right and we encourage anybody who saw something, who knows something, who may have been a victim of this guy to contact the District Attorneys tip line. Reporter the suspect, steven carillo, is an active duty u. S. Air force sergeant based at Travis Air Force base and had special teaming on a military police unit. Hes an angry man intent on bringing harm to police officers. He murdered sergeant gutswiler, injured another police officer, and hes going to be held accountable. Reporter today, sheriff jim hart praised the heroic actions after he tackled the suspect. The fbi, which was brought in to help the Sheriffs Office with the investigation, is now looking into a possible link between the ambush and the Fatal Shooting