A 33-year-old man and a 29-year-old woman who had been charged with co-committing the murder of the woman’s seven-year-old son, were taken to jail on Tuesday, the Hellenic Police reported.

The couple who were arrested last Friday, confessed to murdering the boy back in 2017.

Police investigating the boy’s disappearance found his bones stored in a toolbox in the couple’s flat in the Athens district of Kypseli on Saturday.

The mother of the slain boy, a Greek national, had been led before a public prosecutor on Sunday morning, while her partner, a Polish national, had been led before a prosecutor on Saturday night, ANA-MPA reports.

According to their confession, they caused the boy’s death by asphyxiation after blocking his nose and mouth with duct tape, then built a make-shift tomb with bricks on the roof of their apartment building, where they placed the body.

Revealing details that shocked Greece’s public opinion, they had concealed his body for five years, taking it with them from one apartment to another.