I suspect that as MF told CG that she was going to the beach with her cousin on 12th December, 2019 that instead of going to the beach, they both went to Austin and arranged to meet HB in the carpark. IMO maybe MB drove there but once they arrived, they changed seats and the cousin then became the driver.
The investigation into Broussard and Margo’s disappearance heated up Dec. 18, when a woman came forward and said she was driving through the rear of the young family’s apartment complex, Club at Summer Valley, on Dec. 11 or 12 and saw a light-colored four-door vehicle stop perpendicular to the parking spaces.
The woman, a fellow resident of the complex, told police a white woman emerged from between two of the buildings carrying an infant in a knit cap, the affidavit says. She walked toward the car, where another woman emerged from the front passenger seat and greeted the woman with the baby.
“The front seat passenger opened the rear passenger side door of the vehicle, the adult female carrying the small infant entered the rear passenger seat, both doors closed and the vehicle drove away,” the affidavit says.
The witness said the woman with the baby did not have time to secure the baby in a child seat before the car drove away. The affidavit did not say who may have been driving the car.
Police officials have not said if they believe a second person is involved in the kidnapping and Broussard’s slaying.
Green told the investigators that Fieramusca told him on Dec. 12 that she was going to the beach with her cousin. She returned the following day.
Affidavit: Slain mom Heidi Broussard’s ‘best friend’ faked pregnancy to steal her newborn
I imagine that this "cousin" might have been young as December 12 was a Thursday so most people would have been working and younger people are more gullible. I predict that this "cousin" must have been old enough to at least have a provisional driving licence so she/he must be over the age of 16yo as MB was a licenced driver accompanying her. Baby Margo would have been the one passenger under the age of 21yo.
Texas Provisional License
Once a minor turns 16 years old, he or she can apply for a Texas drivers license. However, until the applicant turns 18 years old, a provisional driver license will be issued. Though similar to a standard operator’s permit, the provisional license includes some restrictions. These restrictions include:
- Individuals may not drive with more than one passenger under the age of 21
- Individuals may not use a wireless communication device, except in the case of emergencies
When the driver reaches 18 years of age, the provisional license will expire and a non-restricted license will be issued.
https://www.virtualdriveoftexas.com/get-texas-drivers-license/
Whether this "cousin" knew what MF's real plans were that day or not I have no idea. But when they did not arrive at the beach, MF would have to have told her "cousin" some reason why they did not end up at the beach. Whether HB and the "cousin" were told the same story is unknown and whether the "cousin" was only the driver or an accomplice is also unknown.
But I had not realised was that CG told LE that MF did not return home until the next day. So where did they stay that night? Perhaps at the beach? I guess that was to be MF's alibi - "I have been staying at the beach with my cousin". Perhaps MF had already prepared baby formula for Margo plus a supply of diapers.
There is no way that MF could have done this by herself if there was no child seat because who would hold the baby? Also even if MF had held HB at gunpoint to climb into the trunk of the car, how would she have been able to get the body into the duffle bag?