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Scientist Set to Discuss Plea Bargain In Deadly Attacks Commits Suicide

Authorities investigating the deadly 2001 anthrax mailings used previously unavailable techniques to trace the lethal powder to the office where scientist Bruce E. Ivins worked at the sprawling Army biodefense laboratory at Fort Detrick, Md., according to sources briefed on the investigation.
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By Carrie Johnson, Carol D. Leonnig and Del Quentin Wilber