A Toronto couple charged with concealing the death of their two-year-old son were remanded into custody in a Jamaica court Tuesday.

Stephanie and Alfanso Warren were found fit to stand trial after undergoing a psychiatric evaluation.

The case against the couple, who also charged with failing to bury a body, will resume on March 2.

Their son's partially mummified body was found in a suitcase on Jan. 15. He had likely been dead for several months.

It’s likely he died from disease, asphyxiation or poisoning, a pathologist said, but because his body was so badly decomposed, the exact cause of death was difficult to determine.

The charges come four years after the couple admitted to abandoning their infant daughter in a freezing Toronto stairwell in the dead of winter.

The daughter was found by aid workers and nicknamed Baby Angelica.

On May 22, 2008, police arrested the couple in Kitchener, Ont., and charged them with abandoning a child, failing to provide the necessities of life, assault causing bodily harm and criminal negligence causing bodily harm.

Additional charges were later laid against the pair in connection with their three other children, who were all under age six at the time.

Only the father was criminally convicted, but both parents pleaded guilty to a number of offences.

They moved to Jamaica after their children, including Angelica-Leslie, became wards of the Crown.

With files from The Canadian Press and 680News