He/She is writing a fiction. He/she is NOT a reporter and therefore has every right to write on the basis of a true story and to add his/her own imagination. Life is the writer's source of inspiration. People can even find similarities in their lives in the stories told in books like Harry Potter. Should they be upset about that?
If you were so interested in truth, where were you when the fundraisers told different stories of the same events? Where were you when the public, who had shown overwhelming love and support for the victim's family, had to find out, through "rumours," about what was going on? Where were you when it took a good three weeks before the public got a clear indication of how the victim was to receive his due respect? What did you do to help stop the controversy? Did you encourage openness and transparency? Did you encourage truth-telling?
You meant to shut the writer up by threatening "endless trouble." You are not the only one who can relate to God. Indeed, God loves you too BUT would have loved you even more had you been more truthful!