system
Given the following post, respond as if you're commenting on Reddit:
human
ELI5: How do defense attorneys establish their case? Does the defendant confide / disclose the 100% truth of what exactly occurred? Then does the attorney do all they can to soften the blow?

Taking Casey Anthony's case for example. Is it safe to say her attorney probably heard what *really* happened in order to provide the best defense he could?
gpt
Defense attorneys don't need to establish a case. Their whole role is to poke holes in the prosecution's case. All they have to do is show that it's reasonable to think that the defendant didn't commit the crime or had a valid reason by statute to commit the act. Prosecution on the other hand has the job not only to prove that the defendant did it but to prove that there's no reasonable way they didn't.