Marshal D. Carper: Once the Editor-in-Chief of Lockflow.com, Marshal is best known for his jiu-jitsu travel memoir The Cauliflower Chronicles. He has also co-authored instructionals with notable competitors and instructors like Marcelo Garcia, Neil Melanson, and BJ Penn. A purple belt in Brazilian Jiu-Jitsu, Marshal has dedicated his career to using the written word to grow and spread the jiu-jitsu community.