City officials aren't giving a lot of details about investigation into the fire, that killed Toledo firefighters Jamie Dickman and Stephen Machcinski.
However, the arraignment of Ray Abou-Arab on arson and murder charges, evoked a strong emotion among the Toledo Fire Department.
"It has unleashed a negative emotion. I will not lie about that," said Toledo Fire Chief Luis Santiago.
The city of Toledo has seen its share of arson cases in recent years.
"We have had our rashes of fires, and suspected arsons that, at that time, I told you it's personal," Santiago said. "I will tell you as I stand here now, it doesn't get any more personal."
VIEW: Local stories on fallen firefighters
Abou-Arab appeared in court Monday morning in a suicide gown that's used to make sure an inmate can't use their own clothing to commit suicide.
A mass of firefighters were in the courtroom as the judge set a $5 million bond.
Santiago says that, despite the anger and frustration throughout the department and the community, judgment is now in the hands of the judicial system.
"It is our position that we're gonna exercise great restraint, discipline, and respect the system that is in place," Santiago.
The county prosecutors are reviewing the case. Santiago says the investigation will likely continue for at least a month before more specific information about the fire can be released.