Ricardo Leyva Muñoz Ramírez (February 29, 1960 – June 7, 2013), known as Richard Ramirez, was an American serial killer, rapist, and burglar. His highly publicized home invasion crime spree terrorized the residents of the greater Los Angeles area and later the residents of the San Francisco area from June 1984 until August 1985. Prior to his capture, Ramirez was dubbed the "Night Stalker" by the news media.

After visiting his brother in Tucson, he returned from to Los Angeles early on the morning of August 31. He walked past police officers, who were staking out the bus terminal in hopes of catching the killer should he attempt to flee on an outbound bus, to a convenience store in East Los Angeles.

Some elderly Mexican women identifying him as "El Matador" (or "The Killer"), Ramirez saw his face on the front pages on the newspaper rack and fled the store in a panic. After running across the Santa Ana Freeway, he attempted to carjack a woman but was chased away by bystanders, who pursued him. After hopping over several fences and attempting two more carjackings, he was eventually subdued by a group of residents, one of whom had struck him over the head with a metal bar in the pursuit. The group held Ramirez down and relentlessly beat him until the police arrived and took him into custody.

Ramirez died of complications from B-cell lymphoma while awaiting execution on California's death row.

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