21.   Investigators apparently focused some attention on a much more advanced aviation school in Daytona Beach, the Embry-Riddle Aeronautical University.

22.   Investigators are focusing on Kingman, Ariz., where McVeigh formerly lived, to discover how the money was raised.

23.   Investigators have focused on arrangements involving the referral of patients to laboratories, hospitals, medical equipment suppliers, imaging centers or other medical businesses.

24.   Investigators initially focused on Rapp.

25.   Investigators next focused on his hospital records from an incident four years earlier.

26.   Investigators are focusing on inadvertent rudder movement as a contributor to the USAir crash.

27.   Investigators are focusing on researchers with knowledge of the potentially deadly bacterium, Carter said.

28.   Investigators focused on Wilber from the beginning because he provided a crucial piece of evidence.

29.   Investigators have been focusing their attention on New Jersey, Texas, Florida and Massachusetts.

30.   Investigators quickly focused on Gina.