A man unlocks a room with a key from his pocket.
He opens the door and walks into the room.
There in front of him, Romeo and Juliet are lying dead on the floor.
Can you figure out who killed them and how?
Here are the clues:
1. There's water on the floor along with broken glass.
2. The small window of the room (the only window in the room) is open.
3. There doesnt appear to have been a struggle, nor any weapons used.
It's over to you!