Public information about ongoing investigations and arrests wouldn't be problematic if our society didn't have such hilariously broken views on criminal investigations and trials.
Get arrested in connection with some well talked-about crime, but were released or found innocent at trial? Doesn't matter, you're still guilty in the eyes of the public. Hell, look at jury boxes in the US - you as a defendant are assumed guilty against the spirit of our constitution, because people suck.
Either we as a society need to fix our fucked up perceptions, or we need to have a serious discussion about the right to privacy up until the point that a verdict is delivered. Unfortunately, there's no evidence that we are going to fix the former in a timely manner.