Due to the law at the time, there can be no prosecution over the death of the 96th victim, Tony Bland.
This is because he died more than a year and a day after his injuries were caused.
The jury at Mr Duckenfield's original trial earlier this year failed to agree a verdict.
There were gasps in court as the seven women and three men on the jury returned the verdict, following 13 hours and 43 minutes of discussions.