Who was Wormtail supposed to murder?

[dcyasser]

No: HPFGUIDX 44412

Goblet of Fire, in the Riddle House, LV and Wormtail are going over 
the plan, discussing the next murder that Wormtail is to commit, 
along with Crouch Jr., that will clear the path to get to Harry. 
"Come Wormtail, one more death and our path to Harry Potter is clear."
Who is that intended victim? 
Is it Moody?  Was Crouch supposed to kill him, but kept him alive, as 
he says, to question him about his past and his habits? 
And Voldemort doesn't mind the change in plans? Or does he not know 
about that? 

"dcyasser"