In Sebokeng in 1991, unknown killers opened fire and killed more than 47 mourners at the night vigil of the funeral of a fellow comrade, Christopher Nangalembe. This incident came to be known as the Nangalembe Night Vigil massacre. The Sebokeng community decided to build a monument in honour of the victims of the Nangalembe Night Vigil massacre. The community contributed funds and built a small tombstone inscribed with the names of 47 known victims inscribed on it. The monument was built in Zone 7 where the massacre took place. The monument of Nangalembe Night Vigil massacre was unveiled by President Mandela on 21 March 1996.