On September 29 , 1986 , Knorr moved the family 's belongings out of the home .
On September 29 , 1986 , Knorr ordered her youngest daughter Terry to burn down the apartment in an effort to destroy any physical evidence .
On September 29 , 1986 , Knorr moved the family 's belongings out of the home and ordered her youngest daughter Terry to burn down the apartment in an effort to destroy any physical evidence .