MADISON, Wis. (AP) — A former Dane County sheriff's deputy found not legally responsible for killing his wife and sister-in-law in 2014 due to a mental disease will be released from a mental institution.

A Dane County judge ruled Friday that Andrew Steele's body has degenerated due to ALS and he can't move in a way that would pose a risk to public safety.

Judge Nicholas McNamara also says symptoms of a mental disorder haven't manifested, showing Steele likely didn't suffer from a mental disease when his wife, 39-year-old Ashlee Steele, and her sister, 38-year-old Kacee Tollefsbol of Minnesota, were killed.

Still, McNamara wrote, Steele "has the mind of a killer," the Wisconsin State Journal reported.

McNamara ordered the Health Services department to prepare a conditional release plan for Steele within 60 days.