This is the man after whom the term "badjohn" was coined.

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He was John Archer, a notorious, habitual criminal during the early years of the 20th century.
A former soldier with the Second West India Regiment in his native Barbados, Archer arrived in Trinidad in 1887 as a stowaway on a ship, after fleeing the Panama Canal where he had gone to work but landed in trouble.
He continued his violent ways in Trinidad where he was an alcoholic known for frequent street fights and use of obscene language.
By the time Archer tallied up 119 convictions, he was called by the nickname "Bad John". Even a 1902 Mirror report on one of his court trials said he was "better known as 'Bad John’."
Despite his reputation, Archer, a wharf worker, was credited with saving three persons from drowning in the muddy depths of the Port of Spain harbour.
Ironically, Archer drowned in 1916. He was believed to be aged 62.
Sources:
Dictionary of the English/Creole of Trinidad & Tobago by Lise Winer
Freddie Kissoon, Newsday, 2010
Photo: John “Bad John” Archer, Argo Newspaper, 1913
(Source: Dominic Kalipersad, January 16, 2020)