That bit doesn't make sense to me either. Planning a 5 fold murder with a tiny .22 rifle? Doesn't make sense. Jeremy is said to have been a "crack shot" by some. Well that means that he knew that a .22 rifle could never be a sure thing to kill anyone. Nah! I don't buy it that he did it. More like a mentally unstable person in a rage to me.
The power of a .22 bullet should not be underestimated. Some 22 air rifles come under fire arms act.
A .22 is capable travelling a quarter of a mile or more.
What is strange is that some of the bullets were whole when they were low verlocity hollow point.
Hollow point ammo is designed to mushroom on impact to cause maximum damage, and nearly always fragment on impact.
I can assure you that a headshot with a .22 will kill.
I notice the police never mentioned it was hollow point ammo, or if was the type of ammo that was tested.