(Portland, OR)  --  Police say they've arrested three suspects they're calling the "Track Suit Bandits" in connection to nearly a dozen Portland robberies.  Police arrested Lamarr Luster Jr., Kobe Cordray and a 17-year-old boy earlier this week for the robbery of a market in northeast Portland.  Police say they're accused of robbing nine businesses over the past several weeks.  A fourth suspect Antonio Montgomery was arrested earlier this month during a traffic stop.