McNeill is the man accused of killing five-year-old Shaniya Davis in 2009.
Thursday morning, two additional alternates were chosen -- a man and a woman. They added to the alternate juror chosen Wednesday.
The state had requested a fourth alternate to be safe.
Until Thursday, it was unclear if the judge was going to take it that far, but he agreed to a fourth alternate.
Thursday afternoon, that fourth alternate juror was selected.
The jury breakdown is eight women and four men. The alternates are three women and one man.
Opening statements will begin Monday at 9:30 a.m.
McNeill faces first-degree murder, first-degree rape of a child, first-degree kidnapping, human trafficking with a child victim, sexual servitude with a child victim, sexual offense of a child and indecent liberties with a child charges related to Davis' death.
He could face the death penalty if convicted.
Authorities said the girl's body was dumped just off N.C. Highway 87 near the Lee-Harnett County line.
The trial is expected to be lengthy, with the state alone expected to argue two to three weeks. The state has 357 tagged exhibits.