Here's a pic by Harvey Wang of Marcelino Sanchez. It was taken for a Village Voice cover story on the reaction to the film in NYC from February of '79. I have a copy of the article from microfilm. I'm afraid the other pics, as well as the article itself, will be hard to scan because of size and image quality. The author planted Marcelino in three inner city theaters showing the film and discussed the response to the film. In one theater, when Marcelino is spotted by a bunch of kids who have already seen the film dozens of times, they surround him like a returning hero.
Marcelino was 21 when the film came out. He was still living in Williamsburg, Brooklyn with his parents and younger siblings at that point. He came to the U.S. from Puerto Rico when he was six. His family lived two doors down from the local gang's, the Devil Rebels, clubhouse. They used to bum cigarettes from Marcelino's mother. He recalled watching them go out en masse to rumble. He studied graphics then acting at the High School of Art and Design. Prior to making his film debut in The Warriors, he toured Spain in Hair.
Of his castmates he said, "I found myself loving those guys in the movie who were my Warrior brothers. It was a family unit, like being part of a gang: a gang that cared for each other. The surrogate family has to be a reason for gangs in the first place."
Of the original pre-shooting script, he said it had "more realistic and moralistic views. It was crude, violent, and hit the gut."
On the produced script, "They switched it to a fantasy script, with super heroes and Star War-type confrontations. The end result is like a cartoon."
The above quotes come from an excellent Village Voice story entitled "Wild in the Aisles: Why the Warriors Rumble" by Arthur Bell.
Don't know where Marcelino's grave is, but I would guess that it is in Bklyn since that is where he spent most of his life and where his immediate family was.
I always thought of 'CleonsChoice' as a euphemism for 'Swan,' but you can call me 'Cleon.'