The Question and Answer section for Native Son is a great resource to ask questions, find answers, and discuss the novel.
Rather than admit to accidently killing Mary, Bigger's first thought is not getting caught. Without a second thought, he mutilates her body in order to fit it into the furnace. No respect.... no regard.... merely self-preservation. He even steals...
Bigger ad his friends plan to rob Blum's deli.
Bigger didn't know that he hadn't actually killed Bessie. Bessie does from exposure..... hypothermia.