sentences:  He was approximately one year into his second term at the time of his assassination aboard EarthForce One, the "Babylon 5" equivalent of Air Force One, at the beginning of 2259.The incident occurs near the jump point off Io, one of Jupiter's moons.An energy problem with EarthForce One's jump engines is registered and the craft explodes live on ISN (the CNN of "Babylon 5's" universe).