The note you gave me is signed with an "-M"...I don't know what that could mean.$B$BBut...the note also says this person shared patrol routes with Thorsen last week. So whoever shared patrol with Thorsen last week must be the traitor!$B$BGo to Corporal Sethman. He handles the patrol schedules and can tell you who was with Thorsen.

Speak with Corporal Sethman.

Speak with Corporal Sethman at the Rebel Camp in Stranglethorn Vale.