Palestinian medical officials and Internet sites theorized that the five were laborers, trying to sneak into Israel to find work.

The officials theorize that Mr. Royster might have been depressed and enraged by the recent rejection of a woman friend.

Some officials theorized that commuters in the region have become more resourceful in the months since the terror attacks.

Some officials theorized that the bomber could have been in prison or a hospital or overseas for the last few years.

The soil near the foundation of the basement being renovated may have been exposed to rainwater, officials theorized.

At least 117 people have been killed in what Israeli officials theorize is a campaign against Jews by radical Islamic groups to thwart Middle East peace efforts.

The officials theorized that salmonella from the Kasson cheese led to further contamination of the cheeses from other manufacturers at the four shredding plants.

Even now, some officials ludicrously theorize that Mr. Washington could have killed the woman, despite the proof of someone else's DNA.

Some officials theorized that the attack could not have been mounted without local help.

In the 2 minutes and 15 seconds between the explosions, the crew might have had the chance to try to free the missile and douse the fire, the American officials theorized.