You didn't address my comment. I would expect more professional decorum from the POTUS than the average journalist. Maybe that's just me. How about you?
Now I will address your questions. Sure the NEWS media should remain unbiased, BUT I see absolutely nothing wrong with a news journalist showing sadness and anger after a mass shooting and showing compassion for the victims. Point being, some things are so obviously good or bad that neutrality would be disingenuous.
The NEWS media responsibility to the general public is to inform them of relevant facts and events.
Of course they are there to tell the truth which should guide how one thinks.
Fox is by far and away the worst at these thing in all of main stream media.