I don't know I still maintain that everything pointing to murder is still very circumstantial. Most if not all of it can be called into question or refuted in one way or another. I think the question of fingerprints on the gun has already been addressed however if we refer to the same article we find that the "lethal" dosage of heroin in his system my have not been quite as it was reported. Read this passage from Justiceforkurt.com
"HEROIN & VALIUM
Kurt Cobain's blood morphine level was reported to be 1.52 milligrams per litre. The primary source of this claim is a 4/14/94 Seattle Post-Intelligencer article entitled, 'COBAIN LAY DEAD FOR 3 DAYS; NIRVANA SINGER HIGH ON HEROIN WHEN HE PULLED THE TRIGGER'. While this author believes this figure is more than likely accurate, all these possibilities nevertheless must be considered:
a) The SPI reported received a flawed copy of the report.

The SPI didn't receive a copy and was told this figure by word, and they were inadvertently given a wrong number.
c) The figure was misreported for some other reason; confusion in information printing by the paper itself, for instance.
Keep in mind Washington State law forbid the release of this information, so the method of obtainment was illegal unless Courtney specifically allowed it to be released.
That said, it's possible this can still be explained consistent with suicide.
The 1.52 figure includes both free morphine and conjugated (metabolized) morphine. Only the free morphine figure indicates whether or not Kurt was dead or incapacitated. Morphine has a half-life of 2-3 hours. The police reports indicate two injections - one on each inner elbow - were found in the body. Perhaps he injected twice and the free morphine level had lowered enough by the time Kurt chose to administer a second injection, at which point he then decided to commit suicide. While the Dead Men Don't Pull Triggers essay discusses the total level and the purported lethality of such a high dosage, it doesn't eliminate the possibility of a case such as this and doesn't differentiate between free and metabolized morphine as we don't know those actual figures - and again, as long as the 1.52 figure cannot be confirmed, this is all speculation.
It was also reported that Diazepam - Valium - was found in Kurt's system, but the amount is not known. This proves nothing. Diazepam has a halflife of 3-5 days; it is also given to heroin addicts going through rehab, so he could have taken it at Exodus. Additionally, he could have taken it on his own days before his death. The motive for potential murderers administering Valium into Kurt's system is illogical since they could easily just administer heroin until he was incapacitated."
I think this at the very least calls into question weather or not he would have had the ability to kill himself once he shot up. It's also important to keep in mind that Kurt had an unusually high tolerance for heroin, so it might be possible that a dosage that may have killed a casual user didn't have the same effect on Kurt.
As I mentioned earlier the problem with the murder conspiracy is that it's all circumstantial. It may have been murder, the is possible, and the evidence should be called into question but that doesn't simply equate to a murder theory. We still have to take into account this mans mental state around the time of his death, he was completely obsessed with the idea of suicide. It was evident in his lyrics, his interviews, and various pictures.
I think what drives me to believe that Kurt committed suicide all goes back to his attempt in Rome. The man attempted suicide less than two months before he was found dead of a supposed self inflicted gun shot wound. The only main suspect in the case for murder is Courtney Love, yet she found him, called an ambulance and helped revived him. Why would somebody who had her husband knocked off only five weeks later have gone through all that trouble to save his life in Rome? I think when we take this and all the above mentioned evidence of his mental state into account one can say quite safely that he probably committed suicide.