I think it's more about knowing the truth, rather than a manhunt to send people to jail. It wasn't just bad decisions at work, the police lied to media and in official statements to shift the blame on the fans. Why should this be allowed? Why can't, after 21 years, people know the truth?
The main case is Kevin Williams. His mother is certain he died after 3:15pm, which in the inquest was a cut off point. All the ambulances that weren't let on the field didn't matter, because all the 96 were said to be dead by this time. She believes Kevin should get another inquest into how/why he died, as it wasn't the initial crush.
As I said, though, things are finally moving forward. A panel has been set up to go through a vast amount of 'secret' documents (over 2 million pages..) that have yet to be made public. Hopefully some substantial evidence will be found that there was a massive cover up, and the families and survivors will get the truth.