@abc7chicago: Toxicology test results are providing some insight into Liam Payne's tragic death last week. A partial autopsy found that the former One Direction singer, who died at 31, had multiple substances in his system when he fell to his death from the third-floor balcony of his hotel room in Buenos Aires, Argentina on Oct. 16, sources tell ABC News. Those substances included "pink cocaine" - a recreational drug that typically is a mix of several drugs including methamphetamine, ketamine, MDMA and others - as well as cocaine, benzodiazepine and crack. An improvised aluminum pipe to ingest drugs was also found in his hotel room, according to the sources.