PROSPECT-LEFFERTS GARDENS - Investigators are questioning the mother of a 2-week-old boy found dead in a Brooklyn home Sunday.

Police say Amanda Williams, also a mother of two young girls, lived with her mother and younger sisters. Neighbors say there is no way she had anything to do with the dead infant.

A friend of Williams says she was tired, but happy after giving birth to Josiah Williams two weeks ago.

Police have not released any details as to why they are questioning Amanda Williams, but say that her children are in the care of their grandmother.

A medical examiner is performing an autopsy to determine how the child died.