Ramzi Yousef is the nephew of al Qaeda 9/11 planner Khalid Sheikh Mohammad.
Ramzi Yousef, Bojinka plotter and nephew of KSM, was in jail with Mafia man Scarpa Jr., and bragged to him about various ways to bring down an airliner.
The Bojinka conspirators tested one method on a flight and blew up a Japanese passenger on board a flight over the Pacific.
Stinger missile off a boat.
Yousseff was bragging about taking down a bunch of planes.