MINNEAPOLIS -- Court records show the man who killed his ex-wife and two young sons before fatally shooting himself in Minneapolis on Sunday left a suicide note at the scene.

A search warrant unsealed Tuesday doesn't reveal the note's contents.

A medical examiner identified the victims as 39-year-old Kjersten Schladetzky, and her sons, 8-year-old Nelson and 11-year-old William. The boys' father was 53-year-old David Schladetzky.

Authorities say the children were shot outside the home where they lived with their mother, who was shot and stabbed inside the house.

Court records show David Schladetzky hadn't been the subject of a protective order.