SCOTLAND, S.D. (KELO) — There is an update on the man accused of murdering three people in the town of Scotland, South Dakota.

Attorneys for Francis Lange are requesting a mental health evaluation to determine whether he can plead not guilty by reason of insanity.

Francis Lange is accused of going into a home with a gun and shooting everyone inside, in November.

Three people died. Two survivors, including a 5-year-old, were hospitalized.

Lange has pleaded not guilty to three counts of first-degree murder, and two counts of aggravated assault and attempted murder. His trial is scheduled for November.