Helio Gracie was born into a family with a martial arts background. His journey in martial arts was a long and eventful one. He had to face many challenges and opponents. Through his own study and experimentation, he was able to create a unique style within Jiu - Jitsu. His teachings emphasized using leverage and technique over brute strength. His life story is one of perseverance, innovation, and the love for martial arts. His name became synonymous with Brazilian Jiu - Jitsu, and his legacy continues to this day as Jiu - Jitsu has spread across the globe, with countless practitioners following in his footsteps.
Without more information on Helio, it's impossible to determine the key events in his life story. There could be so many different possibilities depending on who Helio is.
Since I don't have details about Helio, it's difficult to tell his life story. Maybe Helio is a unique individual known only to a certain group or community.
One main event was his development of Brazilian Jiu - Jitsu. He made significant changes to traditional Jiu - Jitsu. Another event was his many fights which proved the power of his techniques. For example, his fight against Masahiko Kimura was very famous.
Well, 'The Courier' is purely fictional. The plot and characters were imagined by the writers for entertainment purposes. There's no real-life basis for it.