91.   Investigators have focused on a wheel failure as the likely cause.

92.   Investigators have focused on Algerian militants fighting the military-backed government Paris has supported.

93.   Investigators so far have focused on a wheel failure as the likely cause.

94.   Investigators are focusing on why the local Public Utility Commission failed to immediately notify health authorities that water from town wells was contaminated.

95.   Investigators are focusing on why the pilot was flying so close to the ground.

96.   Investigators focused on the mine, following statements by Dutroux and his wife Michelle Martin, who has been jailed as an accomplice to her husband.

97.   Investigators have been focusing on Paul, who was legally drunk and on Prozac at the time of the crash.

98.   Investigators have focused on Algerian groups fighting to overthrow the military-backed government supported by Paris and install strict Islamic rule.

99.   Investigators have focused their attention in part on what role, if any, photographers may have had in the crash by pursuing the Mercedes.

100.   Investigators nonetheless focused their investigations on the physical aspects of the crash on Tuesday, walking and driving the tunnel where the wreck occurred.