Police said Dereck Sumair set 12 different fires in five days at the Queens and Rego Center malls.
Black Friday openings are creeping up earlier and earlier, with more stores opening on Thanksgiving.
Online retailers Amazon.com, Ebay.com and others are preparing for major Cyber Monday discounts.
Black Friday deals started early for this year's must-have items, from flat-screen TVs to diamonds.
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