Two members of a businessman’s family died and four others critically injured in a road accident in Greater Noida West on Thursday night. Police said the victims met with the accident when their Swift hit a road roller. Two succumbed to their injuries while four others are stated to be critical. Police have registered a case against the callous road roller driver. According to police, the accident could have been averted had the road roller not been parked in the middle of the road with the indicator lights off.