The explosion was considered one of the most dastardly acts of the civil rights era, and suspicions quickly centered on four Klansmen.

In the Canadian crash, suspicion has centered on the entertainment system, which used large amounts of electricity and was unique to Swissair.

Although the police have not named any suspects, suspicion has centered on the girl's parents, John and Patsy Ramsey.

No one claimed responsibility for the attacks, but suspicions centered on backers of the country's former Taliban rulers.

Her suspicions centered around the Changechild.

Given such activities, she said, her first suspicions in the bombing centered on environmental groups.

But from the time of his death, suspicion centered on far-right death squads.

The robbers escaped, but suspicion centered on Talas.

Nella's suspicions centered on Polly.

But suspicions immediately centered on Pakistani militants, on members of Al Qaeda or a combination of the two.