Flannigan came to the Northern Territory in 1883,[1] where he became a skilled stockman and jockey.[2]
He shot dead the acting manager "Greenhide" Sam Croker of Auvergne Station, a remote Northern Territory cattle station on 20 September 1892, after Croker had shot dead an Aboriginal man.[2]
He escaped to Western Australia, later turning himself in. He was transported to Darwin, where he was incarcerated in Darwin's Fannie Bay Gaol in 1893, and sentenced to death.[2]
While waiting to be executed, over 10 months Flannigan did over 80 drawings, now held at the South Australian Museum.[2]
He was executed just after 9:00am on 15 July 1893.[3]
