Investigators have traced only about $35,000 of the money to the campaign.

Investigators traced numbers called on the phone to the suspects, officials said.

Medical investigators can then trace those with whom the infected person had contact.

That finding, however, has not yet helped investigators trace its origins to a particular place, individual or group.

Investigators traced the phone to his driver from a sales tax receipt.

French investigators, through witnesses, traced the grave and found the bodies.

Using the cap, investigators can trace where electrical impulses are coming from when a person lies.

Investigators traced the source of hate messages to Pakistan.

The investigators traced the origin to the billiard hall.

Then investigators trace the movement of the birds to try to locate other diseased flocks.