The Yonkers mother accused of killing her newborn daughter by tossing her out of a window is expected in a Bronx courtroom this morning.

Jennifer Berry was arrested last week after police say she gave birth to a baby girl in her boyfriend's Bronx apartment and then threw the infant from the seventh floor. Berry's boyfriend did not know she was pregnant, and police say she likely delivered the baby alone in his shower.

Investigators say Berry also had a baby son who died in 2008. The death was initially attributed to sudden infant death syndrome. The baby boy, who was just over 2 weeks old, was found unconscious in his crib.

Officials say that they are reopening the investigation into that case now that Berry has been arrested in the Bronx on these new charges. She is facing second-degree murder and manslaughter charges.