Fisher was serving a 70-year prison sentence for killing his father Wilbur Fisher by shooting him in the eye at their house near Glendive in 2017. Officials believe Wilbur Fisher, 80, had been dead for at least a day before Todd Fisher contacted authorities.
NEW YORK TEENAGER SENTENCED TO PRISON FOR DEADLY MOUNT VERNON STABBING OF RIVAL CHEERLEADER
Todd C. Fisher died while in custody at the Montana State Prison. The incident is now being investigated as a homicide. (Fox News)
Todd Fisher had been in prison since 2019. The Montana Supreme Court upheld his conviction in 2021.
Prison officials did not release any other information about the case, including how Fisher died, because it is still being investigated. Investigators believe it was an isolated incident.
The last homicide at the state prison was in October 2012. Danny Hartford, 53, died after a fellow inmate cut his throat with a prison-made weapon.