Magen Fieramusca.Photo: Courtesy of Humble Police

A 33-year-old woman arrested in Texas on Thursday after the discovery of the body ofHeidi Broussardwas close friends with the victim, a source tells PEOPLE.
Magen Fieramusca was charged Friday morning with two counts of kidnapping and one count of tampering with a corpse in connection with the Dec. 12 abduction of Broussard and her newborn daughter, Margo, according to a spokesperson from the Travis County District Attorney’s Office.
Another friend of Broussard’s, Vickie Shreves, tells PEOPLE she saw both Fieramusca and Broussard’s fiancé Shane Carey in the delivery room when Margo was born in November.
“She was supposedly Heidi’s friend for a long time,” says a family member of Broussard’s. “We’ve been knowing her for a long time.”
Details on Broussard’s death were not immediately available.
Broussard’s body was found in the trunk of a vehicle registered to Fieramusca, the prosecution spokesperson says.
Broussard was last seen dropping her 6-year-old son off at Cowan Elementary School in Austin.
Austin Police Department

Fieramusca is being held on $600,000 bond, PEOPLE confirms.
Her arraignment was scheduled for Friday morning, but PEOPLE was unable to determine if she had entered a plea to the charges against her.
Want to keep up with the latest crime coverage? Sign up forPEOPLE’s free True Crime newsletterfor breaking crime news, ongoing trial coverage and details of intriguing unsolved cases.
A prosecution source tells PEOPLE it is likely murder charges will be filed against Fieramusca before the day is over.
Austin Police have scheduled a press conference for 2 p.m. local time, where they will detail the allegations against Fieramusca.
source: people.com