This month in Vertex Comics, The Supersonic Tachyon #48 featured the death of Tachyon at the hands of Glamour, and the beginning of the end of the Vertex universe.
At this point, of course, many fans were probably debating whether this death would stick or whether she would be returning in the next issue; there were two more issues before the line was actually cancelled, which is plenty of time for surprise resurrections in comics!