91.   Empty shell casings littered the ground nearby.

92.   Empty shell casings and a smashed roof were all that was left of the short battle to take the position.

93.   Five shell casings were found at the scene.

94.   From a hole in the shattered walls, one man sells shell casings, spent cartridges, dud grenades and rocket fins.

95.   Metal detectors, on the other hand, see every metal can, scrap and shell casing, resulting in a high false alarm rate.

96.   Officers patrolled with sniffer dogs and combed the damp lawn with metal detectors, apparently searching for shell casings.

97.   Officers found numerous shell casings on the ground, as well as bullet holes in nearby parked cars, Sweeny said.

98.   Rocks and shell casings littered the streets.

99.   Secret Service agents were using metal detectors in an effort to find shell casings to determine how many shots were fired.

100.   Secret Service agents were using metal detectors in an effort to find shell casings to determine how many shots were fired in the incident.