That's what police investigations are for. Just have the police investigate the case and find any evidence and witnesses without the public getting wind of it and tons of issues with the Justice System would be solved.There are two problems with this off the top of my head.
Firstly, charges and trials being publicised allows for increased awareness that gives other witnesses an opportunity to come forward and help the court determine truth.
Hidden? No. Obscured? Yes. There's zero reason to put the defendant's real faces and name and the faces names of their victims/witnesses and anyone else involved in a trial. That's how the Justice System gets subverted by malicious elements. There's a reason Jurors aren't permitted to talk about the case nor to anyone else while a trial is going on: To prevent them from being manipulated or threatened. By publicizing the trial, we not only allow for the public bias to infect the Jury but the witnesses, judges, defendants, prosecution, etc. and insure that those who come forward are harassed if not harmed outright for their part in it. Which also makes witnesses and victims unwilling to step forward because they're afraid of how much of their lives will be ruined by being involved in a court case especially a high profile one. Ideally even the defendant would not know who the witnesses are to protect them from retaliation as well.Secondly, trials being transparent can contribute to public trust in the justice system, because people tend not to trust hidden processes and will suspect they may be rigged and made unfair
In other words, publicizing the trial does nothing other than help subvert the Justice System.
Not if it's kept under wraps like it should be. If the defendant is innocent? Then they don't have to deal with the stigma of having a false accusation hung over them because nobody knew they were ever on trial in the first place. If they're guilty? Then the defendant's real name, face, and crimes are publicized so they are the only one who is effected while the witnesses and victims and those adjacent to them can live normal lives without being harassed over getting the defendant rightly put in jail because nobody knows who they are.I also think it's not going to make much difference, because eventually the truth will out and even if the arsehole much beloved by keyboard warriors goes down, those keyboard warriors will still take revenge on that arsehole's victim.
Yes, there's going to be some cases that the press are going to end up getting wind of and tracking down who's involved. However, by making keeping the whole process as under wraps as possible it helps the entirety of the Justice System work much better.