Messenger of Death (1988)

What the cops can't do, he will.

Wifes and children of the Mormon Orville Beecham become victims of a massacre in his own house. The police believes the crime had a religious motive. Orville doesn't give any comment on the case, is taken into protective custody. Journalist Smith persuades him to help him in the investigation - and finds out about economic motives for the murder.