The last ticket in the book is for work done at Neilson 's home the morning she was murdered -- January 5 , 1981 . Tracey Neilson was stabbed to death January 5 , 1981 . Police say they have investigated over 100 leads . Police released a picture of a cable repair ticket book to help identify initials in the murders .
Tracey Neilson was stabbed to death January 5 , 1981 . Police say they have investigated over 100 leads . Police released a picture of a cable repair ticket book to help identify initials in the murders .