By Tom Pettifor & Nick Sommerlad & Hollie Bone The drug kingpin boss of Olivia Pratt-Korbel’s murderer has been jailed after the crime gang he ran with his brother was smashed. Vincent Coggins, 58, ruled the feared Huyton Firm and ordered attacks on rivals like the one that resulted in the nine-year-old’s death. Olivia’s killer Thomas Cashman, was a hitman for Coggins before he was jailed for her murder. Vincent, known as the Headmaster, and his older brother Francis gained a fearsome status similar to fellow Liverpool trafficker Curtis Warren. The pair reportedly moved to Spain in the 1990s a…