Bill Holton

Bill Holton, a character in "Most Wanted", is the Chief Deputy U.S. Marshal in Texas. He's got his first appearance in book 1, chapter 2.

Look
He has brown eyes and white hair. He wears a blue button down shirt, tan blazer and a U.S. Marshals badge.

Samatha Massey
Bill was Sam's boss and mentor. She's very upset that he got killed by John Tull because he wanted to protect her from this pervert. Sam does everything to catch Tull and get revenge.