C.I.D. S01 E215 The Case Of The Strange Clues - Part 1

A man's wedding proposal gets interrupted when the girlfriend spots an abandoned corpse inside a car, on the opposite side of the road. The CID team is called into action for further investigation of the dead body. It becomes obvious that a blunt object was used in this case, that claim gets solidified when Asha manages to find the murder weapon in the lake. But what about the fake gun found inside the car?