The Building mystery

A dead body is found at the bottom of a multistory building. It looks quite clear that the person has committed suicide by jumping off from one of the floors.

A detective comes, goes to the first floor and walks in the room facing the direction in which the body was found. He opens the closed window of that room and flips a coin towards the floor.

He goes to the second floor and does the exact same thing till the last floor. Then, when he climbs down, he tells the team that it is a murder, not suicide.

How does he know that?

It's easy and logical.

When the detective flip the coin down the building, chances are it didn't roll over to the direction the murdered victim was found.

So if a coin couldn't roll to the said direction, How come the victim rolled over there. Somebody must be involve not suicide.

aaronson:
It's easy and logical.

When the detective flip the coin down the building, chances are it didn't roll over to the direction the murdered victim was found.

So if a coin couldn't roll to the said direction, How come the victim rolled over there. Somebody must be involve not suicide.

very close answer...but a bit away