Just picking up this thread after starting it and then wafting off to lovely Wales.
J04 really - the idea that people's personalities were written on their faces or skull shape was very popular in Victorian times (phrenology etc) It all boiled down to ugly/black/malnourished/diseased = evil/criminal/untrustworthy. If you look back at the illustrations they are shocking. Especially if one recalls that the many people in that time suffered from rickets, congenital syphillis and other diseases that malformed their appearance.
What research shows is that we are prejudiced to make favourable judgements about the good looking and tall and less favourable ones about the ugly and short. I would point out as illustration that Peter Sutcliffe looked very personable.
Assange is an extreme personality - this is obvious as he would not have achieved what he did with wikileaks if he was not. Or persuaded all those people to support him. Or skipped bail. Extreme, value driven personalities may sometimes prove to be to all round good people with their hearts and deeds firmly in the right place. Or sometimes not. We cannot judge from how they look, or, frankly, what journalists opine. Justice systems exist to try to bring the guilty to justice, without wrongly punishing the innocent. Always a tricky line to tread.