Golden was standing by her pickup truck outside the pediatrician's office in Spring, Texas, around 2:40 p.m. when a car with a man and woman inside pulled up. There was reportedly an altercation, after which the woman got out and shot the mother repeatedly with what was believed to be a 9mm pistol, then took the baby and drove off. "My baby, my baby!," Golden reportedly screamed as her infant boy was taken from his car seat. As the mother lay dying in the parking lot, a description of the getaway vehicle and occupants quickly went out as an Amber Alert. Golden later died at a local hospital. Police were led to the Fawndale Apartments in Houston, where sources said a SWAT team entered a unit and found a woman inside speaking on the phone with another woman. Investigators were then able to track the woman on the other phone to a home in north Harris County, where baby Keegan was found. "It's unusual to get such a large swing of events, to go from the murder to the recovery of the child and have the suspect in custody all in a matter of few hours," Ligon told "GMA." Rarely do things work out like they do on TV but, in this case, I can't say enough about law enforcement here in Montgomery County."An affidavit obtained by ABC News from the Montgomery County police states that McClain admitted to shooting Golden and taking the baby to her home in Texas' Harris County. According to the affidavit, McClain's sister, Corina Jackson, had recently said that her sister would be adopting a baby soon. After she allegedly killed Golden and stole her newborn,McClain stated to her sister that she now had the child. McClain has three children ages 16, 10 and 6. "There were statements that were made by Ms. McClain that led us to believe this was an intentional act on her part, not that Ms. Golden was targeted specifically, but that this was part of a plan to kidnap a child," Ligon said. Witnesses said the mom fought to keep the baby from the kidnappers, but ended up in the parking lot with gunshot wounds. "She was laying on the ground. She wasn't moving for nothing," witness Joshua Jesson told ABC station KTRK in Houston. "But then I saw a blue Lexus drive off in that direction." "The child was being put into the suspect vehicle and that's when the mother tried to get into the car," Lt. Dan Norris with the Montgomery County Sheriff's Office said. "The car sped away, knocking the lady to the ground." The female suspect, McClain, was described by witnesses at the scene as a black female carrying a small caliber pistol, possibly a 9mm. Baby Keegan remains in custody of the state's Child Protective Services while officials conduct a full background investigation on his father, Keith Schuchardt, before the newborn is returned to his care, according to Ligon. "I expect them to be reunited this morning or sometime this afternoon," he said. "Obviously for the father, Keith, it has been a roller coaster. You lose your wife one day but you're able to recover your child, it's an emotional swing not many people would be prepared for but I understand he's holding up well."