The remains uncovered at the home of Brittney Sierra, 21, and Calvin Melvin Jr., 27, are being called "consistent with that of a small child or infant" by authorities and will undergo DNA testing Saturday for positive identification.
The search for the missing 2-year-old son of Sierra and Melvin, meanwhile, has officially turned into a homicide investigation.
And the couple are the prime suspects.
The couple remain locked up in Broward County jails on child neglect charges, and police say neither has been forthcoming with clear details on what happened to the little boy. Both continue to point the finger at the other, accusing each of harming and/or neglecting the child.
Both had initially told police they had given their son to their respective family to take care of. Melvin told police he gave the child to his parents, who live in Pompano Beach, 18 months ago. But when the story was followed up on, the grandparents had no idea what the investigator was talking about.
Sierra told investigators a similar story.
"It is difficult for us to understand how this could happen," Hallandale Beach Police Chief Dwayne Flournoy said Sunday. "When someone would ask, 'Where's the baby?' they spun this web of lies to various segments of the respective families."
The couple's respective families had no reason to doubt the story that the child had been given to the other's parents, since they were known to be struggling financially. Police say no one else in either family is facing criminal charges at this time.
Sierra is charged with cruelty toward a child causing great bodily harm and is being held on $100,000 bond. Melvin faces the same charge, as well as a second charge of obstructing an investigation by providing false information. His bond was set at $150,000.