About these tapes:
In 2004 the FBI secreted a listening device in the prison cell of Kaboni Savage at the Federal Detention Center.
Savage was awaiting trial on drug trafficking charges and was a suspect in several homicides. The North Philly cocaine kingpin was being held in the prison's Special Housing Unit (SHU) with limited access to other prisoners.
Dozens of conversations were recorded in which Savage ranted about former associates who were cooperating. Savage said he would kill the cooperators and their families.
The tapes were originally played at Savage's drug trial in 2005. He was convicted and sentenced to 30 years in prison. Many of these tapes have also been played at Savage's ongoing murder-racketeering trial in U.S. District Court in Philadelphia.