A LETTER left by killer Paul Cohrs in the aftermath of the shooting deaths of his mother and brother in 2018 has provided a chilling insight into the pre-meditation and planning he went to before leaving a reign of terror across two states.

Sixty-four-year-old Cohrs was this week sentenced to 30 years' jail for the shooting death of his mother Bette Cohrs-Schulz in the kitchen of her Red Cliffs h...