However, Orli knew there were hundreds of nooks and crannies where no previous investigator had ever set foot.

The previous investigator, hired last week, resigned after discovering a potential conflict of interest through his former firm.

To their surprise, the researchers found that much more methane was absorbed by microbes in the soil of the unfertilized plots than previous investigators had reported.

For the final two investigators, the previous investigator who was "murdered" will determine who gets his or her first choice on which suspect they want to pursue.

But four previous investigators had come here and returned to report "no crime" when all surface evidence pointed to something profoundly wrong in Fraffin's private empire.

There was another picture in his mind, equally disturbing: the fatal accidents of the two previous investigators.

His throbbing shoulder, memory of the gas jet, the knowledge that two previous investigators had died in this valley - these were sufficient answer to the question, he thought.

Like the studies of previous investigators, the report concludes that Mr. Foster showed classic signs of depression and vulnerability from the growing pressures of his job.

The importance of STAT3 activation via IL-6 in prostatic cancer development has been suggested by previous investigators.

Carroll Alley (previous principal investigator of Apollo's reflector experiment)