It’s hard to see much interest in the truth, in this affidavit.
What you have is two conflicting stories. You have one witness for Treyvon, and two for Zimmerman. There is also a time difference between when the two stories are relevant.
The girl friend was talking to Treyvon before the scuffle. The two Zimmerman witnesses were during the scuffle. The only one who who has an account AS the scuffle started is Zimmerman.
So the DA is using one version of the story that makes it a crime as opposed to self defense.
The identification of Treyvon yelling for help in the 911 tapes is disputed - Zimmerman related people have claimed the voice is his.
Simply because we can’t know who started - a REAL trial of the facts would lead one to have doubts, thus Zimmerman should be found not-guilty.
That is the way I see it should come down with the limited info we have.