"Because sometimes they're innocent"

From The Ice Belongs Out There, Not in Here:

Law Talk: Defending Guilty People Isn't Easy

The problem with people who are genuinely guilty is: they're not going to present like innocent people. The evidence is not going to help you get them off. You will be looking at absolutely overwhelming evidence screaming THIS GUY IS SO GUILTY, and it is so damn hard to put that aside and say I'm gonna do the best job I can...

But sometimes, they aren't guilty...