unsolved deaths - Mysteries

The Lead Masks Case

November 8, 2026November 8, 2026 by Tommy Hayes

The Niterói waterfront seen across Guanabara Bay — the city above which the two men were found on Morro do Vintém in 1966, not the victims or the lead masks

About 4 min readIn August 1966 two Brazilian electronics technicians were found dead on a hillside above Niterói, wearing suits, raincoats and handmade lead masks — with a cryptic note in a pocket and no cause of death ever established.