Jasper Schuringa subdued man accused of trying to blow up car . Schuringa says he thought something was wrong when man was standing still while on run . Yemen : Umar bin AbdulMutallab may have ties to al Qaeda terror group .
Jasper Schuringa subdued man accused of trying to blow up plane . Schuringa says he knew something was wrong when man was sitting still while on fire . Investigators : Umar Farouk AbdulMutallab may have ties to al Qaeda terror group .