Police believe the child died after his mother's 325-pound boyfriend fatally beat him.
Marquis Johnson's mother, Claudia Johnson, told police that on the day before her son died, her live-in boyfriend, Clezel Montague Mughni, 27, took the toddler into the bathroom for “discipline." The next day she called paramedics when her son didn’t wake up.
An autopsy showed the boy suffered a skull fracture, multiple old and new rib fractures, liver damage, slit intestines, two black eyes and multiple injuries to the legs, buttocks and arms. Johnson told police Mughni punched the little boy 30 times in two months.
Police say Munghi may have also severely beaten Marquis' 2-year-old sister. The girl was hospitalized.
Child Protective Services said Mughni had several previous neglect allegations against him with an ex-girlfriend’s children.