Not that it really matters, but I chuckled at the description of the weapon used to shoot the suspect- "an MP5 assault rifle". Most of you know that an MP5 is a submachinegun, not a rifle, let alone an "assault rifle".
As for the effectiveness of a 9mm round, 9mm is perfectly effective at the distances in which they were operating. And 9mm has been putting people six feet under for over a 100 years. The article did not mention it, but I wonder if he was hit by a ricochet which could have kept the round from completely penetrating his skull; the article mentions he has a fractured skull.....