Criminals get early release from prison every day.
Victims, and their relatives, have to cope with this every day.
There is a big fuss about Lee because he is a footballer. If he was an electrician or a baker etc etc etc nobody would know or give a hoot.
My two cents: There would be nothing unlawful about his early release, and he is entitled to take up his previous line of work if the opportunity is there. I have sympathy for the victim, but there is no reason why Lee shouldn't play professional football for latics.
Finally, I don't think shouting abuse at him from the stands, as is certainly going to happen if he plays, is going to help anybody, including relatives of the victim.