Justin London’s theories for holding Karl Wittstrom liable for alleged fraud by Mehul Vyas and his company, Vyasil LLC, included an omission (Wittstrom’s alleged failure to correct Vyas during a March 2010 video conference when Vyas called Wittstrom his “partner”) and an affirmative act (Wittstrom’s alleged efforts to impress London by forwarding the business card of William H. Swanson, a former CEO of Raytheon, a large defense contractor) that London contends were part of a conspiracy to dupe …