Innocent convicted

Walls bathed in blood the smell is strong
A murder just happened I am the first crime scene
What should I do? Call the police
Or best to leave this place?
No... I should better go
Too late, the police have arrived

I am under arrest I suspect
In the upstairs found three more bodies
All decapitated including two children
Neighbours want to kill me
But I did nothing I am innocent

I have been sentenced to death
I only have three months to live
I will be executed I expected the killer whale
My last words will be
I am innocent