I don't concede that he did defend the prosecutor. He said the prosecutor didn't cause a suicide. It does not follow from that that Rayiner approves of the prosecutor's actions.
But your logic wouldn't work even if we stipulated that he defended the prosecutor, because defending prosecutors doesn't make you a prosecutor.
It's you, who tried to cut short a debate by saying that Rayiner was defending "his profession" and talking his own book, who's making the dubious argument.
Nobody is calling you out on it because we're all upset about Aaron Swartz and we can obviously all see which way the wind is blowing on the topic here. But I like Rayiner and would like to see him stick around here, so I'll say it: you're out of line. Stop it.