A hearing is scheduled Friday in Miami on the request by 21-year-old Venjah Hunte.
Under a plea deal, Hunte would serve no more than 29 years in return for his cooperation. If he withdraws his guilty plea, Hunte could face a life sentence like his four co-defendants.
Taylor, 24, died from massive blood loss after being shot in a November 2007 attempted robbery at his Miami-area home. He was an All-Pro safety with the Redskins who starred in college at the University of Miami.
All five suspects are from the Fort Myers area and are being held without bail. Their trial is currently set for Jan. 18.