This is a strange pattern. It would make a pretty Perl script...
From 1840, every president elected in a year ending in the numerical '0' has been assassinated, died in office, or been severely wounded in an attempt on his life.
Each event has taken pace in an odd numbered year and each on an even numbered day.
In each case the number of terms the president was elected to, has alternated between single and multiple (i.e. Harrison 1, Lincoln 2, Garfield 1, Mckinley 2, etc....).
Ronald Reagan was the first president who did not die as a result of this 'curse.'
If this pattern continues, the person elected in 2000 will die in 2001 or 2003, or will be wounded in an assassination attempt.