A murder so beautiful

Can you forget if you killed someone? Well if there is a sin then you have to pay for the the deeds you did... but is it always the truth...  its a story of a girl who seems to be lost in her world... but is it the truth... can she be a pschologically not alright.. well we can say.. but a person like this cant live peacefully...well he doesnt think so... why?

"Love doesnt see sin."