Now I see the doors the forensic scientist Dr. Lee complained about. It was assumed that since they were locked Mr Cobain committed suicide, but according to toxicology, it Dr. Lee's opinion, a person with that much heroine in him could not have pulled the trigger. The doors were never analyzed, i.e., a pane of glass could have been removed and replaced after an alleged homicide, and setup to look like what was expected. Dr. Lee, of Connecticut, also testified at the "OJ trial" thought the crime scene was mishandled.
Other recent forensics also show that Jimi Hendrix may have had a switched sleeping pill available at the time from Germany that was four-times as powerful as expected, and to this day many insist he died from a heroine overdose.
I've worked with a forensic anthropologist on a rare occasion in public archaeology, Marilyn London with the Smithsonian, on call with the state of Rhode Island, in the "First Almshouse" cemetery remains inside NYC City Hall Park in 1999 and also on the previous research that placed that there. Thanks for the graphic.