He should’ve taken her into protective custody and risked being at odds with the courts, early on. Jeb lacked courage.
Jeb had an OBLIGATION as governor to protect Terri and he refused to perform his duty. He had the DUTY to command the state national guard and state police to take custody of Terri if he believed she was being murdered; if he believed her killing to be legal, then he wouldn't order it.
A probate judge DOES NOT have authority over the governor of the state.
I am not aware of a single instance in history other than Terri's where a county judge was allow to nullify a lawful Congressional subpoena.