Sunday, May 27, 2007




MSNBC - A research team that includes a former top FBI scientist is
challenging the bullet analysis used by the government to conclude that
Lee Harvey Oswald acted alone in assassinating President John F. Kennedy
in 1963. The "evidence used to rule out a second assassin is
fundamentally flawed," concludes a new article in the Annals of Applied
Statistics written by former FBI lab metallurgist William A. Tobin and
Texas A&M University researchers Cliff Spiegelman and William D. James.

The researchers' re-analysis involved new statistical calculations and a
modern chemical analysis of bullets from the same batch Oswald is
purported to have used. They reached no conclusion about whether more
than one gunman was involved, but urged that authorities conduct a new
and complete forensic re-analysis of the five bullet fragments left from
the assassination 44 years ago. . .

Tobin was the FBI lab's chief metallurgy expert for more than two
decades. He analyzed metal evidence in major cases that included the
1995 Oklahoma City bombing and the 1996 explosion of TWA Flight 800 off
Long Island.

After retiring, he attracted national attention by questioning the FBI
science used in prosecutions for decades to match bullets to crime
suspects through their lead content. The questions he and others raised
prompted a National Academy of Sciences review that in 2003 concluded
that the FBI's bullet lead analysis was flawed. The FBI agreed and
generally ended the use of that type of analysis.


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