Indianapolis police have arrested four suspects in connection with four armed robberies on Labor Day: Elliot Johnson, 20; Shaquille Carter, 19; Brandon Nabors, 18; and a male juvenile. All are from Indianapolis. Three of the robberies happened in the span of several minutes just before 12:30 p.m. Monday near 16th Street and College Avenue. A fourth robbery took place a few hours later. Several victims were beaten and another was struck by a car while riding his bike.