He and other investigators here would not speculate about the motive for the attacks.

Investigators speculated that the victims, two women and a man, had been dead since Tuesday.

Investigators speculate he may have tripped over a ball or the dog.

Investigators first speculated that the boy was the intended victim.

Investigators would not speculate on a motive for the killings.

Investigators speculate that with their test flights completed, the hijackers now wanted to save money.

An investigator speculated that the vandals might be teenagers out of school for the summer.

Investigators speculated that the initial explosion may have caused a short circuit in the second set of bombs.

The patrons, the investigators speculate, fled the scene, possibly by cab and in many cases wearing little more than towels.

Investigators speculate that the driver may have been attempting to make up this lost time by increasing the train's speed beyond customary limits.