In East Los Angeles, Garfield High's claim to fame was it was where Jaime Escalante taught math. He was lauded for his efforts to challenge his students, and ultimately had a film made based on this called Stand And Deliver.
When I first moved to Los Angeles in 1998, I worked at a small company that produced somewhat low-budget shows. One of which took place in East Los Angeles. One saturday morning I found myself at Garfield High, drawing fake gang graffiti.
The actual school had barely any real graffiti surprise to say. We drew ours on with hair-care products which could easily be washed off. It was a bizarre experience to say the least. Here's some still of my handi-work: