Summit County Crime Stoppers is offering a reward for information leading to the arrest of a man suspected in four robberies since late January.Akron police said all the robberies took place at businesses on Copley Road.The incidents took place:• Jan. 26 shortly after 9:30 p.m. at the Family Dollar in the 900 block. The clerk told police a man threatened her as if he had a gun, and demanded money. No gun was seen and the man fled the store with an undisclosed amount of cash.• About 7