Simplify the following text for a Grade 8 native English-speaking person.
Original: Finally , in The reward of cruelty , he receives what Hogarth warns is the inevitable fate of those who start down the path Nero has followed : his body is taken from the gallows after his execution as a murderer and is mutilated by surgeons in the anatomical theater .
Simplified: At last , in The reward of cruelty , his body is taken from the gallows after he is execution and is cut up into pieces by surgeons .