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World trade center
With the new treat of terrorism, the nation fear the worse. -
Period: to
timespan
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First letters sent
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Leahy letter found
The Leahy letter would provide a major lead to the investigation. -
Suspect dies
The suspect Bruce Ivins dies, most likely suicide by an overdose. -
Case closed?
The FBI officially closes the investigation, saying Bruce Ivins sent the letters. -
Loose ends
A group of researchers provide evidence that prevents any scientific evidence from being linked. However the case was not re opened. -
Authors note
For a full in depth timeline check out NPR, they did a great job describing this event.