Attorney General Jeffrey Chiesa said finding Shamsidden Abdur-Raheem guilty of murder was justice for 3-month-old Zara Malani-Lin Abdur-Raheem.
The child's mother, Venetta Benjamin, who testified against Abdur-Raheem, said only "God is good," following the verdict and thanked those who worked on the case.
Abdur-Raheem faces life in prison after his conviction on murder and kidnapping charges in superior court in New Brunswick.
The 24-year-old Galloway Township resident showed no reaction to the verdict. His attorney did not comment outside court or immediately return a phone message.
The case prompted changes to the Amber Alert system.
WAKE UP WITH EYEWITNESS NEWS! Click here to download the WABC Eyewitness News Alarm Clock app from iTunes. or search WABC or 7online in the app store.
Get Eyewitness News Delivered