It doesn’t ring true. Robert Baer explains why. Money quote:
I’m told by people involved in the investigation that KSM was present during Wall Street Journal correspondent Danny Pearl’s execution but was in fact not the person who killed him. There exists videotape footage of the execution that minimizes KSM’s role. And if KSM did indeed exaggerate his role in the Pearl murder, it raises the question of just what else he has exaggerated, or outright fabricated.
The fruit of torture is bad intelligence. The point of torture is always and only torture.
The Dish 