Drawing a dead man

He opens the door and asks why I'm selling my paintings.
He doesn't know yet but i'm going to kill him.
In the heat of the night, so still for once.
I said goodbye a long time ago, to everything, even my life...
even my art...
Artists feel pain, more intense, more gray scale.
I wanted to poison him, then draw him dead.
Why does he ask me things that kill me?