God, so fucking true. My partner is in prison for manslaughter, the person he killed was a friend of mine and someone he loved very much. He's a good person, who was in a delusional state at the time, and I witnessed up until a couple of minutes before the crime so I know it to be true. I still love him, and he's still the same man who was my dearest friend and lover before what we now call The Tragedy happened. But most people who don't know him, who only heard about his crime in the media, think he must be evil. But he's not.
Unless you experience it yourself, you don't know about these shades of gray.