Forum:Who did Voldemort kill?

At the begginning of Goblet of Fire, when Frank is listening in on Voldemort and Wormtail, Voldemort keeps saying things like "just one more death and the path to Harry Potter will be clear." Frank is obviously shocked to hear Voldemort plotting murder, but, as far as I can tell, we never find out who else Voldemort needs to kill to get to Harry. Bertha was already dead, so he didn't mean her, he couldn't kill Moody if he wanted Barty Jr. to keep drinking Polyjuice, Barty Sr. was originally supposssed to remain alive under the imperius curse to avoid suspicion and was only killed because he was starting to resist it, and Voldemort couldn't possible have known that Cedric was going to come with Harry. So, did I miss something, was this an oversight on Rowling's part, or was this a reference to a subplot that didn't make it to the final version of the book?Icecreamdif 20:40, February 9, 2012 (UTC)