When Did Kurt Return and the Critical April Window

It's been 31 years since the death of Kurt Cobain, the lead singer of Nirvana.  The official story is that he committed suicide.  What if he didn't commit suicide? What if, in fact, he was murdered? Well, that is the heart of a new book out now called To Kurt. I'm sorry. Investigative journalist Chris Todd is really behind this book, and really the writer behind this book and the investigator on this book,