Isaac "Iced-Out" Krantz is a diamond seller and the killer of rapper Clarisse "Sweet" James, with whom Krantz was having an affair.
Krantz tried to frame music producer Andre Blair, down to paying an inmate to stab Krantz and lying Blair put a hit on him. When the frame job was revealed, Krantz was found guilty of murder and imprisoned. (L&O: "Bling")