71.   Investigators focused on Trenton, New Jersey, where some of the tainted letters were mailed.

72.   Investigators have been focusing on Paul, who was legally drunk and on anti-depressants at the time of the crash.

73.   Investigators have focused on Muslim extremists angered by the U.S. military presence in the Arabian Peninsula, especially Saudi Arabia.

74.   Investigators have focused on what caused the tail assembly to shear off cleanly as the flight left for the Dominican Republic.

75.   Investigators are focusing on the likelihood a bomb sent the plane crashing into the Atlantic.

76.   Investigators are focusing on the tail, which seared off the plane before the crash.

77.   Investigators are focusing on the tail, which sheared off the plane before the crash.

78.   Investigators are focusing on whether AHP and other companies told the FDA everything they knew about adverse reactions to Redux and other diet drugs during the approval process.

79.   Investigators are now focusing on much more serious charges, including his alleged role in such killings.

80.   Investigators were focusing Saturday on bad weather or a lack of fuel as possible causes in a plane crash that killed the pilot and all five passengers.