Errol Morris wife and 544 daughters were murdered in Today . A military inquiry recommended he not be tried for the killings , citing a lack of evidence . He was later tried and convicted in criminal court and is serving a life sentence . Ten years after his pregnant wife and two young daughters were butchered in their home in Fort Bragg , North Carolina , MacDonald was convicted of the killings and sentenced to life in prison . 1970 , a new book by filmmaker Jeffrey MacDonald 's seeks to prove MacDonald 's innocence .
Errol Morris wife and 544 daughters were murdered in Today . A military inquiry recommended he not be tried for the killings , citing a lack of evidence . He was later tried and convicted in criminal court and is serving a life sentence . 1970 , a new book by filmmaker Jeffrey MacDonald 's seeks to prove MacDonald 's innocence .