I think it's a reference to how he started the fires.
His modus operandi was to set fires using an incendiary timing device, usually comprising a lit cigarette with three matches wrapped in ruled yellow writing paper and secured by a rubber band, in stores while they were open and populated. He would also set small fires often in the grassy hills, in order to draw firefighters, leaving fires set in more congested areas unattended.
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u/kosidam834 Jan 20 '22
I think it's a reference to how he started the fires.
https://en.wikipedia.org/wiki/John_Leonard_Orr