Was Abraham Lincoln dying of cancer when he was killed? NGC is on the
front lines as scientists attempt to solve a genetic mystery -- using a
piece of fabric stained with the president's blood to run DNA analysis.
The final year of Lincoln's life seemed to age him a decade, and he had
lost an alarming amount of weight. Even today, his strange body shape,
unusual height and long limbs have led to speculation that he harbored
some hidden medical problem.