The motion filed Wednesday argues that a "substantial disparity" exists between the evidence in the first indictment — charging Heuermann with first and second-degree murder in the killings of Melissa Barthelemy,

Accused Gilgo Beach serial killer Rex Heuermann has asked a judge to break up charges in the murders of seven women into multiple trials.

In a motion filed Wednesday, Heuermann argued he should be tried for the murders of Melissa Barthelemy, Amber Costello and Megan Waterman and then put on trial again for other murders.