Courier Mail – Daniel Tzvetkoff, the Queensland business whiz who became an informant and key player in the shutting down of America’s multimillion-dollar online poker industry, could avoid more jail time in the US. Tzvetkoff faced a 75-year sentence in a federal jail when he was arrested in Las Vegas in 2010 for illegally processing more than $US1 billion, but the 31-year-old, along with his parents and mother-in-law, have made a passionate plea to a New York judge ahead of his sentencing. Tzvetkoff, who handed over more than 90,000 documents to US prosecutors that helped them go after the heads…