Dead men can't testify

The Moscow trial of Sergei Magnitsky has concluded; he was found guilty of tax fraud.  Unfortunately, Mr. Magnitsky was not around to hear the verdict.  He died in 2009.  Magnitsky had unearthed what he felt was a tax fraud by Russian officials.  When he reported it to the authorities, he was accused of fraud.  Although he was ill when he was arrested, there are questions as to whether his treatment in jail accelerated his death.

I wonder how much time, effort and money was expended on this trial.