Apparently 7 jurors wanted voluntary manslaughter and 5 wanted murder and neither side was willing to budge to come to a unanimous verdict. Prosecutors have to decide whether to go through the cost and effort of a new trial or to offer a slightly less severe plea bargain. It does look like McInerney will spend at least several years in jail, at least. I personally would be happy with a sentence of 10-25 years.
I disagree with those who say that both young men were victims of bad circumstances. Bullsh*t! One of them is dead, killed at the hands of another, in a purely premeditated fashion. He needs to pay a severe price for such heinous actions.