I was a fan or at least liked the music coming from seattle. The news of his death came as a shock. I was working in one of my first jobs back in 1994 when somebody told my the news.
The suicide was surprising, but life goes on and never really though of a crime. But in 1998 Nick Broomfield makes a documentary on the life of Kurt Cobain and his relationship with Courtney Love. I watch this many years later, thanks to the Internet. The documentary was very interesting and put Courtney Love under heavy suspiscion. Nick interviews El Duce. He claims to have been offered money by Courtney for killing kurt.
Nick Broomfield have made other interesting and controversial documentaries.
http://www.imdb.com/name/nm0112374/?ref_=tt_ov_dr
Later I heard of Tom Grant who was a private dectective hired by Courtney to find Kurt shortly before the finding of his body. He taped the talks he had on the phone with Courtney. She says some interesting things and Tom himself gets suspiscios. In december, 10 month after the death Tom starts speaking out. He runs http://www.cobaincase.com
Even more bad news about Courtney did i hear from her own family. On the opperman report a radio interview. Here Courtneys father talks about her. He thinks she could have killed him.
The suicide note looks fake. with two different handwritings and the top part is not a suicide note. 
The heroin dose also seems suspicious and some doubts about the posibblity of firing a shotgun with that amount in his body.
Did Kurt know 9/11 would happen and was trying to tell? the photo is from the last album from the band. Maybe a coincidence. But could explain why the police never investigated Courtney.
RIP Kurt. You music will never be forgotting.