You have the biased image in your head that if it is reported that person Y stabbed person X then Y must be bad. .
Most people would assume that the person stabbing another person was the bad person if you gave them a sentence like that.
Feel free to ask a random stranger who they perceive to the bad person when you state that someone stabbed another person yesterday.
You have the biased image in your head that if it is reported that person Y stabbed person X then Y must be bad. That's your interpretation, not the words themselves.
Words have consequences. It goes two ways. People have inherent biases, and it can't be solved by pretending that it's their fault.
You make it seem like it would need to be, "It appears that person Y was found holding the non-sharp end of a knife that was connected to the sharper end which was seen to be 4" beyond the dermis intruding upon the inner realms of the abdomen of person X yesterday. It very well could have been with murderous intent that the blade found its way there, or just as equally it could have been the result of a self defense posture by pesron Y, or equally as well it could have been that person X accidentally fell toward the sharp utensil being held by person Y, an out-and-out accident. An investigation has been initiated."
That's a little better. Giving more options does make it less biased.
On the other hand if you said "it could have been this or that" to everything in your newspaper people might accuse you of trivializing things which might be heinous, and that you are are sending off a meaningless philosophical stance. Can't please everyone. Someone will think you're biased and are trying to send off some message.
Even reporting it at all shows that you may want to convey a message of some sort. Not all periodicals report the killings in their towns. Merely reporting it is a message in itself. Most newspapers don't report suicides because it hurts the families of victims and the status of their towns. The same could be said about reporting other crimes. You have to balance how you want to be perceived with the message you want to convey.
Everyone is sending a non-impartial message whenever they report or say anything. It can't be escaped, and can't be denied. Bias exists, and is inherent in everything we say and everything we read.