Nonsense Poem

So I saw Haunting in Connecticut last week and I heard this catchy poem. It doesn't quite make sense but just take it for face value.

One bright day,
In the middle of the night,
Two dead boys got up to fight.
Back to back they faced each other,
Took out their swords and shot each other.
When the deaf policeman heard the noise,
He came and killed those two dead boys.
If you don't believe my story is true,
Ask the blind man, he saw it too!