SPRING, Texas (AP) — A Texas woman accused of killing a young mother and abducting her 3-day-old boy had suffered a miscarriage and intended to "adopt" the newborn as her own, authorities said Wednesday.

Verna McClain, 30, is charged with capital murder after confessing to killing the new mother and grabbing tiny Keegan Golden from outside a pediatrician's office in suburban Houston. Keegan was found unharmed hours later with McClain's sister.

The Montgomery County sheriff's office said Wednesday that McClain — estranged from her husband, with whom she had raised three children — had told her fiancé she was pregnant and had given birth to his child. Instead, McClain had miscarried, Capt. Bruce Zenor said.