A fourth suspect has been arrested in connection with an armed robbery Sunday at Scheels sporting goods. Deputies from the Washoe County Sheriff’s Office say 23-year-old Dalton Frederick was arrested at the Peckham Gardens Condominiums on Neil Road just after 3:30 this morning. Police are still searching for 23-year-old Tiffany Hiller. Store security personnel told police that two men and a woman concealed a large number of items on their bodies and tried to leave the store without paying. Police say, when security confronted the three, one of the men pointed a gun at a loss prevention officer. The three ran from the store, and were located and arrested a short time later, however it was determined a total of five people had been involved in the robbery.