Man accused in sword slaying enters insanity plea

Man accused in sword slaying enters insanity plea
Young Choi

A Watertown man accused of killing another man with a sword pleaded not guilty by reason of mental disease of defect in court Thursday.

Young Choi, 30, was arrested last July for allegedly stabbing his neighbor, 27-year-old Dustin Vanderheyden, in the abdomen and partially scalping him the previous month. Vanderheyden died hours later in surgery.

In October, Choi’s doctor testified he believed Choi was incompetent to face trial and court proceedings were temporarily suspended.

At a competency hearing June 12, the court acknowledged Choi had regained competency and was properly medicated.

Choi, who had been housed at Mendota Mental Health Institute in Madison, according to online records, was moved to the county jail on first-degree intentional homicide charges