As tributes poured in, so did shock from people who had no idea such a danger existed in plain sight. Experts quietly confirmed what Arthur never had a chance to learn: some materials that look like sand can be lethal when inhaled. Now, his story travels farther than he ever did, carried by grief and love. His smile endures, not just as a memory, but as a silent plea for vigilance around every child at play.
Heartbroken family posts photo of smiling boy, who leapt into toxic powder unaware it was deadly
