Four men were arrested on Sunday in connection with the murder of reggae star Lucky Dube, 702 Eyewitness News reported.Police arrested the four in Spruitview on the East Rand on Sunday morning, the radio station said.A crack team of detectives had been assembled to search for the killers.Dube was shot dead in Rosettenville at about 8.20pm on Thursday night, said police spokesperson Captain Cheryl Engelbrecht. The singer was travelling in a grey Chrysler with his two teenage children at the time.Source: Mail&Guardian