Question: What outlaw, gang leader and convicted police murderer served as Harry Power's accomplice?

Context paragraphs:
Jack Powers: Jack Powers (John Power) (1827 – November 1860) was an Irish born gambler, outlaw, highway-robber, gang leader, and murderer in southern and central California during the Gold Rush era.  For a time in the 1850s, robberies and murders committed by his group of bandits made the stretch of El Camino Real between San Luis Obispo and Santa Barbara the most dangerous route in the state, and he and his gang had almost complete control of the small city of Santa Barbara.  He was eventually driven out of town, but only after intimidating and defeating the sheriff and a posse of 200.  He eventually fled the area, and after a brief career running a ranch in the Mexican state of Sonora, he was murdered in a fight over a woman, and his body was fed to a pen of starving pigs.

Mayabini: Woodcutters were working in the dense jungle of Pratapgarh estate but suddenly one animal like creatur started killing them.  Feared labours went to Rajabahadur for their safety.  Being the owner of the forest Rajabahadur and his trusted "Nayeb" (Accountant) Biswambhar Dutta filed a complaint to the police to stop the continuous mishap.  Mr. Gadadhar Halder, the worthless Officer-in-charge of local police station deputed two constable in forest but could not find out the murderer.  Rajabahadur informs her sister Bimala, that his friend Mainak Singha Choudhury is coming with his niece Madhabi to arrange the marriage of Madhabi with Kumar Bahadur, only son of Rajabahadur.  But that very day Rajabahadur became killed by one masked person.  On the other side a bar dancer in Kolkata, Ms. Swati who is exactly looking like Madhabi is in serious need of money for the operation of her mother.  She tries to borrow the amount but fails.  She gets an action role of Madhabi who is going to marry Kumar Bahadur.  A master plan was prepared by gang leader Raghu Roy to send Swati instead of Madhabi as well as kidnap original Madhabi with his uncle.  Swati and one gambler Biplab Panja come to Pratapgarh as niece and uncle.  A newly appointed driver Panchu suspeciously watches on everyone.  In the meantime the Deputy Superintendent of Police Ranjit Chatterjee goes to Pratapgarh to investigate the murders.  Earlier there was an affair between Ranjit and Madhabi.  However, after the engagement, Bimala takes Swati and Biplab Panja to an underground vault to gift her some jewellery.  Immediately after the incedent someone steals all the valuables.  The servant who saw the real thief became murdered.  In the end it revealed that the Nayeb of the estate is the original thief and murderer.  Driver Panchu aka Narayan Ghosh who is actually the detective inspector of police arrest Biswambhar.  Police confirm that Swati and Biplab are mere imposter and also alleged them but they were set free because the charge against them is denied by Kumar.  At last Kumar marries Swathi and Biplob is selected as new Nayeb of Pratapgarh estate.

The Police Murderer: The Police Murderer (Swedish: "Polismördaren" ) is a 1994 Swedish police film about Martin Beck, directed by Peter Keglevic.

Al Rooney: Albert "Al" Rooney (1892-?)  was an American gang leader and founder of the Fourteenth Street Gang.  One of the independent gangs allied with Monk Eastman, most of them former members of the Humpty Jackson gang, Rooney led the group from the mid-to late 1900s (decade) until the New York City Police Department launched a four-year citywide campaign to break up the countless street gangs operating in the city between 1910 and 1914.  Rooney was one of the first gang leaders to be imprisoned and, with his conviction of second degree murder in 1911, is considered one of the last generation gang captains of the "Gangs of New York" period.

Barbara Becnel: Barbara Cottman Becnel (born May 30, 1950) is an American author, journalist, and film producer.  She was a close friend and advocate for Crips co-founder Stanley Williams (aka "Stan Tookie Williams"; a convicted murderer and former gang leader who would later become an anti-gang activist and writer), and editor of Williams's series of children's books, which spoke out against gang violence.  Williams was executed in 2005.  Becnel co-produced the Golden Globe-nominated film "", which starred award-winning actress Lynn Whitfield playing the role of Becnel.

Ned Kelly: Edward "Ned" Kelly (December 1854 – 11 November 1880) was an Australian bushranger, outlaw, gang leader and convicted police murderer.  Recognised as the last and most famous of the bushrangers, he is best-known for wearing a self-made suit of bulletproof armour during his final shootout with the police.

Jeff Fort: Jeff Fort (born February 20, 1947; also known as Abdul Malik Ka'bah) is an American former gang leader from Chicago, Illinois.  Fort is the co-founder of the Black P. Stones gang and founder of its El Rukn faction.  Fort is currently serving a total of 155 year prison sentence; 80 year prison sentence after being convicted of conspiracy and weapons charges in 1987 for plotting to commit attacks inside the U.S. in exchange for weapons and $2.5 million from Libya and a 75 year sentence for ordering a murder in 1981.  Fort was also convicted of drug trafficking in 1983 and sentenced to 13 years in prison.

D. P. Yadav: Dharam Pal Yadav is an Indian gang leader from Western Uttar Pradesh who later joined politics.  He is often referred to with epithets such as "mafia don", "underground don" or the "unrivalled don of western Uttar Pradesh".  He is the father of Vikas Yadav, the convicted murderer of Nitish Katara.  He was a MLA (member of the state legislature) four times (three times from Bulandshahr and once from Sahaswan) and also a MP (member of parliament) twice (representing Sambhal in both the Rajya Sabha and Lok Sabha).  His wife, Umlesh Yadav, was MLA from Bisauli.  His nephew is currently Member of Legislative Council (MLC) from Badayun.

Harry Power: Harry Power (1819–1891) was an Australian bushranger, who at one time had Ned Kelly, another bushranger, serve as his accomplice while a teenager.

Jimmy Cariggio: James Cariggio (1892 – March 3, 1914), known as both Gold Mine Jimmy and Jimmy Curley, was an American criminal and gang leader.  The founder of the Jimmy Curley Gang, his gang was responsible for numerous hold ups and robberies in Manhattan at the start of the 20th century.  He had been arrested several times in connection with the gang's activities, he himself was never identified in court.  Longtime rivals of the Gas House Gang, Cariggio shot and killed their leader Tommy Lynch in a gunfight in early-1914.

Supporting paragraphs: Harry Power Ned Kelly
Answer: Ned Kelly