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,

In a motion filed 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.

Accused Gilgo Beach serial killer Rex Heuermann wants numerous different trials for the seven women he’s charged with murdering, claiming he could be unfairly convicted due to a “cumulative effect.” Lawyers for Heuermann argued in court papers Wednesday that the initial three women he’s charged with murdering should not be tried at the same time as the four women he was later also charged with slaying,