Lowell Edwin Amos (January 4, 1943 – January 5, 2022) was an American convicted murderer and suspected serial killer whose mother and three wives all died under suspicious circumstances. He was convicted in 1996 of murdering his third wife, Roberta Mowery Amos, and was the subject of a 2006 Lifetime Network made-for-TV movie called Black Widower.

Giuseppe Greco (Italian: [dʒuˈzɛppe ˈɡrɛːko]; 4 January 1952 – September 1985) was an Italian hitman and high-ranking member of the Sicilian Mafia. A number of sources refer to him exclusively as Pino Greco, although Giuseppe was his Christian name; Pino is a frequent abbreviation of the name Giuseppe.

Lucy Letby (born 4 January 1990) is a British former neonatal nurse who was convicted of murdering seven infants and attempting to murder seven others at the Countess of Chester Hospital between June 2015 and June 2016. She came under investigation after an unusual cluster of deaths and collapses in the hospital's neonatal unit, three years after she began working there.

Raffaele Ganci (4 January 1932 – 3 June 2022) was a member of the Mafia in Sicily from the Noce neighbourhood in Palermo. He was considered to be the right-hand man of Cosa Nostra boss Totò Riina and sat on the Sicilian Mafia Commission.

Grace Ntombizodwa Mugabe (formerly Goreraza, née Marufu; born 23 July 1965) is a Zimbabwean entrepreneur, politician and the widow of the late President Robert Mugabe. She served as the First Lady of Zimbabwe from 1996 until her husband's resignation in November 2017, a week after he was ousted from power in the 2017 Zimbabwean coup d'état.