A tracking device on a stolen jewelry case led police to three Detroiters they suspect stole $300,000 worth of jewelry this week from a Utica store.Arrested Wednesday and formally charged Friday with larceny over $20,000 at 41A District Court in Shelby Township were Cha-nell Lana Flemming, 30; KK Lavon McGilary, 28; and Jamar Edward Owens, 23.