So, the JTA thinks it is a stupid suggestion (from James Taranto in the Wall Street Journal) that the "accidental killing" of American activist Rachel Corrie by an Israeli bulldozer in March 2003 may have given the Palestinian who perpetrated Wednesday’s attack in Jerusalem the idea for turning his vehicle into a deadly weapon.
The JTA has a point. It is impossible to know what goes through the mind of a murderer as he embarks upon his murders, so it is sheer speculation to suggest Wednesday's killer might have been influenced by the Corrie "accident".