DEERFIELD BEACH, Fla. -- A 3-year-old boy is dead and his mother and grandmother are jailed -- one charged with intentionally burning him on Christmas Day, and the other for allowing him to go untreated until his death on New Year’s Day.

Broward Sheriff's Office deputies were dispatched to a medical call at 369 S.W. 11th St. Sunday morning and arrived to find Jaquez Mason unresponsive.

Deputies said Mason had third-degree burns over 50 percent of his body. He was rushed to Broward General Medical Center, where he later died.

Associate Medical Examiner Gertrude Juste ruled the death a homicide, and said that Jaquez probably would have survived if he had received proper medical care.

The investigation revealed that Jaquez had been in the court-ordered custody of his grandmother, Annie Williams, because of prior child abuse committed by his mother, Valerie Kennedy. Despite the custody order, Williams, 51, decided to allow Jaquez to spend Christmas Day with his mother and let Kennedy, 30, take the boy to her home in Coral Springs, Fla.

During the holiday, Kennedy held her son in a tub of scalding water as a form of punishment for soiling his diaper, according to investigators. Deputies said that in the evening on Christmas Day, Kennedy told Williams that Jaquez got burned and turned him over to her.

Williams took her grandson back to her Deerfield Beach home, where she applied powder and ointment to his burns for a week but never took him to a hospital for treatment, deputies said.

"I don't know what happened or why it happened," Williams' neighbor, Gail Jenkins, said. "That baby had to suffer, you know, from Christmas Day to (New Year's Day)."

Detectives said Williams and Kennedy gave statements admitting that they did not give Jaquez proper medical attention until his death.

Williams is charged with manslaughter and was released on $10,000 bond. Kennedy is being held without bond and is charged with felony murder by child abuse.

Williams seven other children, ages 1, 2, 5, 6, 7, 9 and 12 years old, are in the custody of the Department of Children and Families.