In July 2008, Brooklyn, N.Y., attorney Mark Schwartz and his wife Christina Petrowski-Schwartz, a divorce mediator, were found shot dead — “execution-style,” according to the tabloids — in their bed in their Marine Park home.

Monday, the Brooklyn district attorney’s office announced the indictment and arrests of four defendants who, along with the couple themselves, allegedly operated a million-dollar criminal conspiracy (pdf) involving money laundering, identity theft, mortgage fraud and larceny.