Grief author's young sons beg judge to jail mom for life for poisoning their dad's Moscow Mule - as their chilling letters reveal the locked-door mystery from the night he died

The sons of a grief author are seeking life imprisonment for their mother, who is accused of poisoning their father's Moscow Mule. The case involves a locked-door mystery from the night of the father's death. The sons' chilling letters reveal their desire for justice.