The FBI has swooped in on Meghan Markle's estranged father, Thomas Markle, arresting the 82-year-old in Florida after a California investigation into child sexual abuse material. FBI agents have arrested Thomas Markle Sr., the estranged father of Meghan, Duchess of Sussex, in Florida. The 82-year-old has been charged with one count of possessing child sexual abuse. Thomas Markle, father of Duchess Meghan, was arrested in Florida by the FBI Nov.