I am liking this but question: Who is "Los Angeles' husband?" I didn't get the line.
Sumner was part of the Resistance team sent back during Season One alongside Derek Reese. Skynet had sent back a terminator to protect the designer of a program called ARTIE (Barbara Chamberlain). To facilitate its mission it terminated the woman's husband and replaced him. Sumner was killed when Sayles revealed himself, by accident, as stalking Barbara Chamberlain. Vick followed them to the Safe House and terminated each of the team members and waited for Derek Reese.
Season One: Gnothi Seauton
Season One: Vick's Chip