By Hollie Silverman, Rosa Flores and Pierre Meilhan, CNN
(CNN) — The friend suspected of killing Heidi Broussard and passing the woman’s newborn baby off as her own had convinced her ex-boyfriend that she gave birth to his child, according to an arrest affidavit.
Magen Rose Fieramusca also had a key to Broussard’s Austin apartment, the document says, and was seen there on the day of the disappearance — the day she claimed to have delivered her own baby at a birthing center whose name she “couldn’t remember.”
Fieramusca is being held in Travis County, Texas, on two counts of kidnapping and one count of tampering with a corpse. She is being held on $600,000 bond, and will reportedly be in court in February.
She has not yet been charged with murder, but Broussard’s body was found Dec. 19 in the trunk of a car outside Fieramusca’s home near Houston. The slain woman’s 3-week-old daughter, Margot Carey, was found safe inside the home.
Mother and child had gone missing a week earlier, after Broussard, 33, dropped her son off at his school near their home.
Broussard’s boyfriend, Shane Carey — Margot’s father — told police that Broussard and Fieramusca had been friends for more than a decade, having met while attending the Texas Bible Institute in Columbus, Texas, the affidavit said.
Carey told investigators that the two women both “became pregnant around the same time in 2019” and that “he saw Fieramusca visibly pregnant in person.” He said “both women had spoken about the possibility of delivering on the same date,” according to the affidavit.
A baby registry on the site The Bump says that Maygen Humphrey — a name Fieramusca has used — had a due date of Dec. 1.
It’s unclear if she was faking her pregnancy or if she had actually been pregnant for a time, the affidavit said.
When Broussard delivered Margot on November 26, Fieramusca drove from Houston, allegedly at 37 weeks pregnant, to be at the hospital during the birth.
Carey said Fieramusca interrupted his own father from holding the baby right after birth, saying she wanted to hold her because she had to leave soon, the affidavit said.
Carey told investigators that he gave Fieramusca a key to the family’s apartment and she stayed with them for a night after the birth. He says that although Fieramusca said she would leave the key on the counter he was never able to locate it, according to the affidavit.
On December 8 or 9, Broussard told Carey that Fieramusca had given birth to a baby girl, but he never saw any photos of the baby, according to the affidavit.
A neighbor’s surveillance video shows Fieramusca’s vehicle in the parking lot of the couple’s Austin apartment complex on the day of the disappearance, the affidavit said.
Another resident of the complex told investigators that she saw Fieramusca put a small infant into the back seat of the vehicle and then speed away.
Investigators with the FBI found the details of Fieramusca’s actions surrounding the birth of Broussard’s daughter consistent with the profile of female child abductors, the affidavit said.
They tracked her social media movements and internet searches on her phone, which included “Amber alert issued Austin,” and “bodies found in Austin.” Some form of “Heidi Broussard” was searched at least 162 times from a device linked to Fieramusca’s email account, according to the affidavit.
FBI agents followed Fieramusca’s ex-boyfriend, Christopher Green, as he left their shared residence in Houston. They approached him as he left a Target store with baby clothes and formula.
When agents confronted him with photos of Broussard and Margot, he replied, “That’s the baby at my house,” the affidavit said.
Green told police that he and Fieramusca had broken up earlier in the year but were still sharing a house, and he believed she was pregnant with his child.
He said he noticed that Fieramusca’s stomach “grew during the year,” saying “he felt her stomach, which he described as hard,” the affidavit said. However, Green allegedly said he never saw Fieramusca’s bare stomach during the pregnancy.
On the morning Broussard disappeared, Fieramusca went to the beach with a cousin, she told an investigator. When she saw Green the next day, she said, she told him, “Don’t be mad, don’t be mad.” When he asked why he would be mad, she told him that she had gone into labor and delivered their baby without telling him, the affidavit said. The baby, she said, was on the bed.
Fieramusca told investigators that she had given birth December 12 at a birthing center in The Woodlands, an area north of Houston, and brought the baby home the same day. When questioned by investigators she could not recall the name of the center, the affidavit said.
Her attorney says the defense still hasn’t seen all of the evidence in the case.
“We call upon patience and resisting the rush to judgment until all the facts are in,” said Fieramusca’s attorney, Brian Erskine.