Two more men have been arrested in connection with the murder of two sisters, who were shot dead in Southwest Delhi's R.K. Puram in the early hours of June 18, an official said on Monday. The accused have been identified as Kishan alias Chaudhary (27) and Ganesh Swamy (39), both residents of sector-12 R.K. Puram, Delhi. On Sunday, hours after the murder, the Delhi Police had arrested Arjun, Michael, and Dev.