A Virginia man who had a relationship with a Brazilian au pair is going on trial in the killings of his wife and another man. Brendan Banfield is charged with aggravated murder in the February 2023 killings of Christine Banfield and Joseph Ryan at a home in northern Virginia. Prosecutors argue the killings stem from a catfishing scheme in which Banfield lured Ryan to the house and staged it to look like he and the family's au pair shot a predator in defense. Not all officials investigating the case believe Banfield catfished Ryan. Banfield's attorney says that officials are searching for evidence to fit their theory of the elaborate scheme.