When Did Gelsen Gas Die?

Angel Sanchez Gas (1933–2015) was popularly known as Gelsen Gas, an alliterative pseudonym. He was a multifaceted and interdisciplinary artist, theater director, film director, film producer, actor, painter, poet, sculptor and inventor, based in Mexico City, Mexico. His career and style are highly diversified and hard to classify. He is most commonly known for his paintings and geometrically constructed artworks.