Crime Files: UArizona professor murdered; Tinder meetup ends in armed robbery

Our top crime stories for the week of Oct. 3: A University of Arizona professor allegedly killed by a former student; a domestic violence suspect setting a north Phoenix home on fire; a motorcyclist struck by hit-and-run driver on Loop 101; a Tinder meet-up turns into an armed robbery at Phoenix hotel; and a brawl at Circle K that ends in a stabbing.

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