The warehouse fire in Bartow, Florida that I posted about on Saturday has been ruled arson according to the Ledger Online. Information is unavailable regarding whether the sprinkler system was tampered with however, it is part of the investigation that is ongoing. From the article;
[Kevin] Shireman [Detective; Fire Marshall’s Office] said it was evident where the fire started and its cause.
Investigators also are continuing to examine a fire at the PrecisionAire plant on July 2, which state officials also have ruled arson. Shireman said the only parallels between the two fires, though, is they both occurred in the evening.”