Thomas Markle Sr., 82, faces potentially decades in federal prison following his arrest on charges of possession of child pornography. Legal analysts suggest that the sentence could effectively amount to a life sentence, given his age and health conditions.

Shari Karney, a national legal analyst, told Page Six that federal sentences for child pornography possession are substantial, with the average sentence being approximately 83 months, or nearly seven years. She added that a 20-year sentence would mean Markle could "die in federal custody." Given his age of 82, even a five- or ten-year sentence could be considered a life sentence.

Markle was arrested by the FBI at a senior living facility in Lakeland, Florida. The criminal complaint, obtained by Page Six, states that Markle appeared in two images alongside an underage girl, and a witness identified him as the adult in the photographs. He faces a statutory maximum sentence of 20 years in federal prison.

His defense may attempt to use his dementia diagnosis, age, amputation, and other medical issues to argue for a shorter sentence, with a defense attorney likely contending that a lengthy prison term would be equivalent to a death sentence. However, Karney noted that "Being elderly, disabled, or the father of a duchess does not confer immunity from criminal prosecution. The law does not have a royal-family exception."

If convicted, Markle's health issues could also influence his placement within the federal prison system, as the Bureau of Prisons is obligated to address serious medical needs. His condition might require specialized medical care.

Markle's legal troubles first came to light last month when his son, Thomas Markle Jr., reported to authorities in the Philippines that he had discovered a large cache of child sexual abuse material (CSAM) belonging to his father. The investigation was conducted in coordination with the FBI.

FBI special agents searched two storage units registered to Markle since 2008. Agents seized approximately 78 items, including slides, film negatives, and books containing suspected child sex abuse material. Markle's son, Thomas Jr., initially brought allegations to The Sun.

At the time of his son's accusations, Markle Sr. called them "sick lies." Later, a Daily Mail reporter reportedly found "vile" materials in an abandoned storage unit in Mexico belonging to Markle.

Markle was released on bond and returned to the senior living facility under the condition that he have no contact with minors. He appeared in court Friday, hours after his arrest.

Meghan Markle, the Duchess of Sussex, stated that the investigation left her "deeply disturbed" in a previous statement to Page Six. However, she plans to remain silent regarding her father's arrest. Meghan and Prince Harry have relocated to England after moving back to the UK in August and are scheduled for their first joint overseas trip to Brussels since the move.