Did you read what I said? He's being held in protective custody because they fear, rightly, that he may kill himself. And if God-forbid he succeeded in doing so, what would you and the rest of his supports say then? That they killed him to shut him up, to send a warning to other would-be whistle-blowers, or some other nonsense.
And Manning isn't a victim. He released an enormous cache of classified information, directly violating an oath that he took not to, placing ISAF Forces in jeopardy and undermining the ability of the State Department (you know, the agency that tries to affect positive change in the world without the use of force) to do its job. What wrong-doing did Manning uncover; what crimes? All he succeeding in doing was harming the State Department and endangering ISAF personnel and the Afghans who aid them.