Richard Ramirez, the notorious “Night Stalker” serial killer, and rapist, died on June 7, 2013, at the age of 53. He was being held on death row at San Quentin State Prison in California, awaiting execution for his numerous heinous crimes.

The cause of Ramirez’s death was complications resulting from B-cell lymphoma, a type of blood cancer that affects the body’s immune system. He had been receiving treatment for cancer at Marin General Hospital in Greenbrae, California, but he ultimately died of liver failure caused by cancer.

Ramirez had been on death row for over 23 years, and his case had been mired in legal challenges and delays. California had not executed anyone since 2006, and at the time of his death, there was a moratorium on executions in the state due to concerns about the constitutionality of the lethal injection process.

Ramirez’s death marked the end of a long and violent chapter in California’s history and brought some closure to the families of his many victims. However, it also reignited debates about the death penalty and the effectiveness of the criminal justice system in deterring and punishing violent crime.