Keffe D's Tupac Confession Came With a Promise Cops Put on Tape

For fifteen years, the government held a recording of Duane "Keffe D" Davis explaining his role in the death of Tupac Shakur, and no charge followed. The Tupac trial in Las Vegas just showed the jury why that changed. The 2008 interview ran under a proffer agreement, which Davis later called the deal of a lifetime, and it legally blocked prosecutors from building a case out of what he said in the…