Tucker challenges Michigan State's move to fire him over harassment claims

Tucker denies wrongdoing and argues the allegations don't justify termination.
Tucker's attorneys criticize the investigation as biased and lacking due process.
The university notified Tucker it intends to fire him over sexual harassment of activist Brenda Tracy.
Firing Tucker for cause would allow Michigan State to avoid paying his $95 million contract.
A hearing is scheduled for October as Tucker fights the allegations.