Hi, im looking for a book i have read long time ago and cant remember its name or the writer, but i remember the plot. It was narrated by the book's main character (Sort of Big Sleep style) who was searching for his wife killer whilst getting over a terrible withdrawal from having his brain implants removed after coming back from a moon colony project that was abandoned by the Goverment, only to find out that his wife was killed not by a person but by mysterious drug called "jewel" that turns out to be nanoorganisms ... I have been searching high and low, please help if you know this book or if you know where else i can look. Thanks!