Shirlene N. Alcime, Milendhet and Milendhere Napoleon-Cadet, and the scene where she allegedly jumped off the interstate overpass (WPLG screenshots)

A 42-year-old mother in Florida accused of leaving her 3-year-old fraternal twins to die in the back seat of a car atop an interstate overpass before trying to kill herself by leaping to the train tracks below tried to give her kids one final “good day” by taking them to McDonald’s and Chuck E. Cheese in the hours before their deaths, police say.

Shirlene Alcime is currently facing two counts of child neglect in connection with the children’s deaths, but authorities have indicated that additional charges such as murder may be filed when the preliminary investigation is complete. The results of toxicology screenings on the children are still pending.

She has pleaded not guilty to the charges.

As previously reported by Law&Crime, when police arrived at the overpass where Alcime had stopped her car, they could only watch as she “jumped over the expressway wall” and onto the tracks below. Inside the car, authorities found the two children unresponsive and foaming at the mouth. The kids were pronounced dead a short while later.

Miami-Dade Police Det. Malia Carson on Wednesday appeared in court for a pretrial bond hearing and testified about her disturbing interactions with the twins’ mother following the deaths of her children, Milendhet and Milendhere Napoleon-Cadet, and her own suicide attempt.

According to Miami ABC affiliate WPLG, Carson told the court that officers responding to the scene found Alcime on the train tracks below the interstate overpass from which she had jumped. The detective said that Alcime was “moaning and crawling” on the tracks.