The baby's mother was in court and watched without visible reaction.
Abdur-Raheem is charged with killing Zara Malani-lin Abdur after allegedly snatching her from her maternal grandmother Feb. 16.
Prosecutors charge that Abdur-Raheem tossed the baby from Driscoll Bridge into the Raritan River. The child has not been found.
Abdur-Raheem has already pleaded not guilty to several related charges.