Vincent "Vince" Decker is a former hedge fund firm employee who was blowing the whistle on the firm’s Ponzi scheme. He contacted Dawn Prescott under the alias of "Stephen" to give information for her to report. When the CEO, Frederic Matson, was informed of the story by Dawn’s colleague Joe Delaney, Frederic’s wife Irene ordered Vince’s murder and home invasion by client and cartel enforcer Livan Santana to silence him and take the evidence against the company back. Vince was shot in his head in his backyard.
After Irene killed Dawn, Santana fled the country, and the Masons were imprisoned for their crimes, (L&O: "Anchors Away”)