The boy, Daniel Griner Jr., was reported missing back on February 8, 2019 in Bridgeton, by his mother, 28-year-old Nakira M. Griner, who said that the toddler had been abducted.
Authorities say the boy was never abducted.
His desecrated remains were found on his mother's property hours after the initial search.
An autopsy concluded the child died from blunt force trauma.
On Wednesday, a jury found Griner guilty of murder, desecration of human remains and other related offenses.
Sentencing is scheduled for February 21, 2023.