91.   A doctor who treated him, who became suspicious, alerted police about the case.

92.   A bomb exploded in an abandoned house at dawn Thursday, alerting police who arrested five people with homemade bombs at the headquarters of the Puerto Rico Telephone Co.

93.   A Chechen, who acted as a driver and bodyguard for the Russian reporters, was not taken and alerted the police.

94.   A mailman discovered a suspicious bag in the trash can and told a newsstand merchant who alerted police.

95.   A fourth employee, released nearly three hours after the hostage-taking began, alerted police, the Italian news agency ANSA reported.

96.   A French journalist at Liberation newspaper alerted police after receiving an anonymous phone call about the car.

97.   A homemade timer was attached to the rockets that were spotted by a passer-by who alerted police.

98.   A German man who was with the Italian alerted police, Held said.

99.   A motorist spotted five bodies on the side of a road and alerted police.

100.   A housekeeper alerted police after the murder.