The murder was planned and executed by some business house due to some professional rivalry. The conclusion came from the fact that, the original killers had been killed by another truly professional killer. The third killer was so expert in killing, he used only two bullets to kill two persons on the spot. The killers of the couple were identified as two first time professional killers lodged in Tihar jail for the last few months and were released just three days before the incident. They had been in judicial custody for alleged murder of two politicians in separate incidents. From their telephone records also nothing could be dug out. However, the police were baffled by a fact that the revolvers used by the killers had only two bullets in each revolver as there was no proof of removing any bullet after the incident.