You're confusing a few details, he was a CIA employee and he was almost certainly guilty. You should read through the court transcripts, they basically recovere

You're confusing a few details, he was a CIA employee and he was almost certainly guilty. You should read through the court transcripts, they basically recovered logs showing him doing it on his workstation and managed to narrow it down to the leak on the basis of a typo in a command that existed in the logs and in the copy of the dump sent to wikileaks. He spread a lot of FUD in his defence though, so if you don't pay attention and bother to read the court transcripts you'll walk away with the opinion you have. For the record, he was barely computer literate-- they made their living writing programs that basically just inject DLLs and copy files. I'm probably being a little untruthful calling him border-line computer illiterate, he has a bachelors in CS or similar, but he was just a basic programmer and not some sort of super hacker or exquisite computer all-star.