According to documents obtained by WESH, Sterns was abusing Madeline for nearly two years.
While law enforcement had initially found evidence that Sterns had been abusing Soto when she was 12 years old, an arrest affidavit breaks down how they were able to determine it went back even further.
The arrest affidavit for Sterns says he allowed law enforcement to search his phone but said he had accidentally done a factory reset on it the day Soto disappeared.
Despite the reset, investigators say they were able to get videos and images off the phone.
The Orange County Sheriff's Office said "disturbing images" were found. And metadata showed some of what they found was from August 2022, when Madeline would have been 11 years old.
According to documents from the Kissimmee Police Department, Soto was a victim of sexual battery, and evidence suggested Sterns was involved.
Kissimmee police led the investigation into the alleged crimes since they took place at the home where Soto, her mother and Sterns lived.