After serving on a jury, it is my opinion others should not to 'publish' opinions of a crime until the full investigation has been completed.
Obviously, HAL wanted to protect it's name and their is nothing wrong with their intention.
However, if the police or FBI have not made a determination if this was a crime or not, it could have severe consequences when it comes to a jury who has seen the 'news'. Many believe the 'news' and use that to determine the outcome of a trial.
This might possibly be why the police were miffed? Did they ask HAL not to say anything?