How could a mother do something like this to her own child?

This story just breaks our hearts. Five-year-old Shaniya Davis was found dead off a heavily wooded road in a rural area of North Carolina today, ending a weeklong search, police said. They did not say how she died.

Over the weekend, we told you that Shaniya's mother, Antoinette Davis, 25, had been charged with human trafficking and felony child abuse. Police say Shaniya was offered for prostitution. Davis is due in court this afternoon.

How could a mother do this to her own child? It turns our stomachs to think about what little Shaniya went through.

Mario Andrette McNeill, 29, has also been charged with kidnapping. Surveillance footage from a hotel reportedly shows him carrying Shaniya there. He was arrested on Friday.

Shaniya's father, Bradley Lockhart, raised his daughter for several years, but last month says he decided to let her stay with her mother. "I should've never let her go over there," he told the Associated Press on Saturday.

We just can't get this story out of our heads. WHY would a mother -- the person who is supposed to keep her child safe -- allegedly do something like this to such an innocent young child? Why?