In reality, those who are/were friends that attend are probably doing more for their own emotional support, rather than being able to have any influence on the fairness/justice..............and that is ok............and to be commended.
Having done a fair amount of bench/jury trials in my career.......................the press is some of your best insurance that the scales of justice maintain their balance.
As former Supreme Court Justice Louis Brandeis noted in an article on publicity.................."Sunlight is the best disinfectant."
Any campaign seeking justice in countries with weak judicial systems........................needs as much sunlight as can be had.
Those who really want to help need to contact the press both national and international. Their presence perhaps cannot insure a specific outcome, but they can help keep the scales of justice balanced.
Respectfully,
Playacaribe2