Greg Kading is a former LAPD homicide investigator. He was the lead detective in the homicide investigations of rap icons Tupac Shakur and The Notorious B.I.G. when the cases were reopened between 2006-2009. After his retirement he wrote a book that included all the new evidence that they had found during those investigations. That book later formed the basis for the documentary Murder Rap: Inside the Biggie and Tupac Murders (2015), which will receive a worldwide release on Netflix in the spring of 2016.