Classified advertising was the primary culprit, plummeting at every company.

In the light, it's the light itself that is the primary culprit.

Allowing legacy software to access data without appropriate shims in place is the primary culprit for such problems.

The Catholic Church is a primary culprit in human overpopulation.

And by the way, the Guardian is far from being a primary culprit when it comes to uncritical repetition of talking heads' hot air.

At certain times of the year, heart-attack rates increase, and the primary culprit in the trend is hard to avoid.

But he added that the recession was the primary culprit.

Wheat products are a primary culprit in Type O weight gain.

Television is considered a primary culprit in prolonging the time of games.

In the end, Manock was vindicated, as the primary culprit turned out to be a major logic board design problem.