Hoyt Woodworth

Hoyt Woodworth was the husband of Lisa's sister Barb and therefore Lisa's brother-in-law.

Season 4
After Nate discovers a photo that places Hoyt on the beach where Lisa disappeared, he confronts Hoyt, but the latter tries to pin the guilt on him saying that Lisa had told him what it was like being married to Nate, making it appear that she committed suicide. However, Nate says she may have left him behind but she would never do that to Maya.

This forces Hoyt to come clean about their affair, saying that he could not let her tell Barb but reveals only that they spent hours on the beach with him playing guitar and singing to her. Then upon seeing his wife listening in he commits suicide by shooting himself in the mouth.