My wife read my review of "Dear Zachary" this morning and commented, "You gave it all away by saying the guy is murdered by a 'fatal attraction.'"
She hasn't seen the movie yet, but I agree with her that I would've given everything away, if the suspense of the movie revolved around discovering who killed Andrew Bagby. But, that's far from the case. We know who killed him very early in the documentary and can easily guess during the first few minutes that Shirley Turner is a real life Alex Forrest.
No, the surprises I withheld from my review are far stranger and more haunting than a simple murder mystery.