The fatwa was against gender mixing
As reported in the news, A prominent Saudi cleric has issued an edict calling for opponents of the kingdom's strict segregation of men and women to be put to death if they refuse to abandon their ideas.
http://www.alarabiya.net/articles/2010/02/24/101355.html
Shaikh Abdul-Rahman al-Barrak said in a fatwa the mixing of genders at the workplace or in education "as advocated by modernisers" is prohibited because it allows "sight of what is forbidden, and forbidden talk between men and women."

"Whoever allows this mixing ... allows forbidden things, and whoever allows them is an infidel and this means defection from Islam ... Either he retracts or he must be killed ... because he disavows and does not observe the Shariah," Barrak said.

"Anyone who accepts that his daughter, sister or wife works with men or attend mixed-gender schooling cares little about his honor and this is a type of pimping," Barrak said.

The monarch dismissed a cleric from a top council of religious scholars in October after he demanded that religious scholars vet the curriculum at a new flagship mixed-gender university.

In 2008, Barrak issued a fatwa that two Saudi writers should be tried for apostasy for their "heretical articles" and put to death if they did not repent after the two wrote articles that questioned the Sunni Muslim view in Saudi Arabia that Christians and Jews should be considered unbelievers.

He has also denounced Shiite Muslims as "infidels" in another edict that coincided with sectarian tensions in Iraq.