There are two reasons kurt COULDN'T have killed himself. Im not saying Courtney did it in person, but she was very involved in it.
1. The gun Kurt used was too long for him to shot himself. the length of the barrel meant that he could not have used his hands to hold the gun, and fingers to pull the trigger once the gun was in his mouth. he would have had to use his foot, and pulled the trigger with his toe. Kurt Cobain was found with both shoes and socks on.
2.Kurt had such a massive amount of cocaine in his body, he would have been intoxicated. he cannot have been conscious at the time of the shot.
Also, i would like to use this opportunity to say that i think it is an absolute ******* disgrace that Courtney Love has chosen that puff Robert Pattinson to play the role of Kurt. If ever there was an insult to the man, that's it right there.