Marcella "Sali" Grace Eiler (September 30, 1987 – September 15, 2008) was an American social activist from Eugene, Oregon who was raped and murdered in Mexico two weeks before her 21st birthday.
Newspapers reported that after Mexico City resident Omar Yoguez Singu admitted that he had killed Eiler with a machete, citizens oversaw his delivery into police custody.
He was found guilty of murder and is serving sentence in a Oaxacan prison.