Marvel's Daredevil: 41 WTF Moments From Season 2
27. Not Guilty
By the time of his arrest, Frank Castle has killed a lot of people. And it's pretty obvious that he's the one responsible, with a very slim chance of him avoiding severe punishment of his own.
So while Nelson & Murdock come onto his side as his new defence team, the expectation is that he'll plead guilty. There's not much other option, to be honest. So then, once all that's settled, he decided to shock everyone and throw a massive curveball by pleading not guilty. To the numerous amounts of murder. That everyone knows he did. Short of pinning this on Brendan Dassey, it doesn't look as though there's any way out for Frank Castle.