The problem with that lengthy pro GZ article is that the majority of statements about GZ's life are simply anecdotal. They are not backed up by citing the source nor by giving any "official" facts.
Example:
Bob E, an employee of (such & such) Peru, from the bureau of vital statistics, confirms that MR So & So, is the maternal father of GZ's grandmother and his birth certificate states that he is Black/Hispanic.
Instead, the article just states that the maternal grandmother's father was Afro-Peruvian. It doesn't even say who in the family is suggesting that.
Another example: Ms So & So, a middle school classmate of GZ, says he was a nice guy. Pretty much anyone can find people to state the perception they had of a person's public image. It does not mean that they are privy to the intricacies of the other person's private medical, educational, psychological, financial, or legal history. Just saying, in public, most people are taught to put their best foot forward....Ms So & So, very likely could not possibly have the complete picture of who GZ was or is today.
But because schools, churches, legal institutions, medical facilities, etc are bound by confidentiality laws (especially as they pertain to minors) we and Ms So & So are not capable of relaying anything other than our very limited interaction with others.
The author didn't cite "official" sources most likely because he/she couldn't. Therefore, with the exception of a few neighbors, the stories are simply anecdotal. Even his employers at his three part time jobs or the places of employment were not cited.
If it were a college paper it would be a "D" paper because it lacks sources and citations. (IMO)