Grandmaster Benjamin Luna Lema 

Grandmaster Benjamin Luna Lema, also known as "Mang Ben" was the founder of Lightning Scientific Arnis International. He fought as a guerrilla during WWII. With him is Guru Elmer Ybanez, (later Maestro) founder of Lema Scientific Kali Arnis System/LESKAS (with the blessing of Mang Ben). This seminar was conducted in Guro Dan Inosanto's gym, Inosanto Academy of Martial Arts, in Marina Del Rey, California.