Rex Heuermann's chilling home confession

The shocking revelation provides new insight into the horrific crimes that plagued Long Island for decades.

Heuermann recently pleaded guilty to the murders, but the details of his ex-wife's knowledge have remained a subject of intense public interest.

Ellerup stated in a teaser for the documentary that she was 'suffocated' by the truth of life with her monster husband.

Investigators are now reviewing the home for any additional evidence that may have been missed during previous searches.