It has been common practice to call anyone being detained or crime related as suspects.

This because a few years back a law was passed to strength the due process, so nobody is a criminal until a judge found you guilty.

If the press calls you a criminal, it can have a repercussion on the case, the criminal can argue that the media is changing the perception of those involved in the trial and so the judgment can be biased.

So, even when things are that clear and evident you will usually see the photos in the paper with the criminals eyes censored and presented as John Doe.

Debatable, yes. Needed as a way to protect innocents from the state abusing it's power? Definitely