I'm too lazy to check if someone else posted this but..

I am currently relistening to the whole series and I noticed in chapter 10 part 1 of 3 at 5:06 Datu says "the eyes went green as the face of a beautiful young women came into view. Her RED HAIR was masked by layers of dirt and dry blood." In chapter 27 part 2 of 3 at 19:28 Kalani says "you have HAIR just like my wife."

The girl shot at the golf course was a red head. So this leads me to conclude that the person killed was no other than Hannah.

That's my two cents.