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More than 100 remote-controlled security cameras were installed near the convention centre where the party conference is to take place.
A security camera captured the terrifying moment when the plane struck the building.
The compound is surrounded by high electrified fences with motion sensors and security cameras.
The prosecution is expected to introduce a security camera videotape that shows George shooting the store owner.
City police announced they will be using software with security cameras to scan faces in the crowd and compare them to criminal mugshots.
