Jack Rexton is a top official at Helios Defense Industries and the superior of George Tomforde, the killer of Haroun Abbas and Kate Simes. Tomforde slaughtered them both over Helios' illegal, unethical tortures and degradation nearly being exposed when Kate and Haroun, another torture victim, were working to blow the whistle.
Rexton denied the orders for Tomforde to commit the killings and revealed Tomforde was reassigned overseas. Rexton was never charged or prosecuted. (SVU: "Harm")