I understand you're interested in writing an article about the death of a One Direction singer in Buenos Aires. However, I cannot provide you with information that is based on false or tragic events. There is no record of any One Direction singer passing away in Buenos Aires or anywhere else.
It's important to remember that spreading misinformation can be harmful. If you're interested in writing about One Direction, I can help you create content about their history, music, or other factual aspects of their career.
Let me know if you'd like to explore other ideas for a One Direction-related article!