Quote:
Originally Posted by rogerpepitone
Destroying a key is pretty difficult and can take a while. Remember, in episode 1, Kinzo's key survived being tossed in the incinerator.
Hiding a key is fast and easy. (For example, if the killer doesn't plan on using it again, toss it out into the middle of the roses. Nobody will be able to find it without a metal detector.) Even if somebody does discover the extra key, it poses little danger to the killer.
|
We have to assume that the culprit expects a full police investigation at some point after they get away with the crime. No unusual evidence can be found.