For more than 30 years, Kurt Cobain’s death has been treated as a closed case. He was found dead in his Seattle home in April 1994, and authorities ruled that he died by suicide from a self-inflicted shotgun wound. That has remained the official conclusion ever since.

The problem is that the evidence is not nearly as simple as the ruling makes it sound.

Independent forensic specialist Bryan Burnett led a renewed examination of the case, working with other forensic experts to review crime-scene photographs, toxicology findings, firearms evidence and other available records. Their analysis does not prove that Cobain was murdered, but it raises enough questions that the original conclusion deserves another serious review.

One of the biggest questions involves the amount of heroin in Cobain’s system. Burnett and the forensic team have questioned whether the level was so high that it could have affected Cobain’s ability to position and fire the shotgun afterward. Cobain was a heavy drug user and would have had a significant tolerance, so that point alone is not conclusive. But it remains an important part of reconstructing exactly what happened in his final moments.

The injection evidence may be even more significant. According to Burnett’s independent forensic analysis, the injection associated with Cobain’s final heroin dose appeared to have been intramuscular, into the muscle, rather than intravenous, into a vein. That matters because Cobain’s documented track marks and history of heroin use indicated that he typically injected directly into his veins.

Burnett’s team also argues that the syringe associated with that injection was larger than the needles found in Cobain’s heroin kit and did not match the other syringes recovered from the scene. If that assessment is correct, it raises an obvious question: why would an experienced intravenous heroin user suddenly use a different-sized needle and a different method of injection immediately before his death?

That question becomes even more important when considered alongside the amount of heroin found in his system. Burnett and the other forensic specialists argue that the toxicology, the unusual injection method and the mismatched syringe should not be looked at separately. Together, they raise questions about whether Cobain administered that final dose himself and whether he would have remained physically capable of operating the shotgun afterward.

Then there is the firearm evidence. The independent analysis has questioned the positioning of the shotgun and what the researchers describe as an apparent lack of expected blood evidence on Cobain’s hands. If he fired a contact shotgun wound himself, they argue, the physical evidence should fit that sequence more clearly.

Any one of these issues could potentially have an explanation. Taken together, they become harder to dismiss.

That does not mean every conspiracy theory surrounding Cobain should suddenly be believed. For decades, people have blamed Courtney Love, the music industry, Hollywood insiders and any number of shadowy figures. Those theories can easily distract from the more important issue: whether the physical evidence supports the original conclusion.

The better question is much simpler: does the physical evidence still support the suicide ruling when examined under modern forensic scrutiny?

Seattle police have reviewed the case before and continue to stand by the suicide ruling. Burnett’s examination is independent and does not have the same unrestricted access to every piece of original evidence that an official investigation would have. Those limitations matter.

But they are also part of the argument for another official review.

If an independent forensic specialist and other experts are identifying inconsistencies in a case that has been considered closed for more than three decades, there is nothing unreasonable about asking investigators with full access to the evidence to examine those concerns themselves.

Reopening the case would not mean declaring that Kurt Cobain was murdered. It would mean determining whether the original conclusion still holds up.

Cold cases are reexamined because forensic science improves, new material becomes available and old assumptions are challenged. Cobain’s fame should not make his case exempt from that same scrutiny.

You can check out our discussion about this on the latest B’s Crime Corner on Breaking Battlegrounds. We break down Bryan Burnett’s forensic analysis, the heroin evidence, the injection method, the mismatched syringe, the shotgun and the crime-scene questions that have put this case back under the microscope.

Kurt Cobain’s death is still officially classified as a suicide.

But after more than 30 years, there are enough unanswered questions to justify asking whether that conclusion deserves another look.

Listen to the latest B’s Crime Corner below or on Breaking Battlegrounds, available wherever you get your podcasts.