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On December 5 2003, a Russian commuter train was hit by suicide bombers.
The time was apparently set for early morning, about 8 am, when the
train would be full of people on their way to work. More than 40 people
were killed and some 200 more were injured. The location was near
Yessentuki, which is close to the Chechnyan border, and the suspicion
was that this was an act in the ongoing troubles between Chechnya and
Russia.
The period set for the GCP event was from an hour before to three hours
after the bombing. The resulting graph has a striking, steady downward
trend that approaches significance (in the direction opposite to the
standard prediction). The trend is especially strong during a period
of about two hours immediately after the bombing.
Chisquare is 14175 on 14400 df, with p = 0.908.
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