DNA was matched to a sample obtained at the crime scene. In 2016, officials disclosed evidence of a second suspect, identified through another DNA sample retrieved from the scene, who is believed to have been present at Leung's murder. Authorities have not publicly identified the suspect, described as being a juvenile at the time, and have not brought charges due to the lack of evidence. "Night Stalker" crimes On June 28, 1984, 79-year-old Jennie Vincow was found murdered in her apartment in Glassell Park, Los Angeles. She had been stabbed repeatedly in the head, neck, and chest while asleep in her bed, and her throat slashed so deeply that she was nearly decapitated. Ramirez's fingerprint was found on a mesh screen he removed to gain access through an open window. This, Ramirez's second known murder, established his pattern of breaking into homes, committing particularly vicious murders, and frequently burglarizing his victims either before or after killing them, which was mainly to support his cocaine addiction and pay his rent. On March 17, 1985, Ramirez attacked 22-year-old Maria Hernandez outside her home in Rosemead, California, shooting her in the face with a .22 caliber handgun after she pulled into her garage. She survived when the bullet ricocheted off the keys she held in her hands as she lifted them to protect herself. Hernandez played dead until Ramirez left the scene. Inside the house, her roommate, Dayle Yoshie Okazaki, age 34, heard the gunshot and ducked behind a counter when she saw Ramirez enter the kitchen. When she raised her head to get a look at what had happened, he shot Okazaki once in the forehead, killing her instantly. Within an hour of the Rosemead home invasion, Ramirez pulled 30-year-old Tsai-Lian "Veronica" Yu out of her car in Monterey Park, shot her twice with a .22 caliber handgun, and fled. She was pronounced dead upon arrival at the hospital. The two murders, and an attempted third, in a single day attracted extensive coverage from news media, who dubbed the attacker, described as curly-haired with bulging eyes and wide-spaced, rotting teeth, "The Walk-In Killer" and "The Valley Intruder". On March 27, 1985, Ramirez entered a home that he had burglarized a year earlier just outside of Whittier, California, at approximately 2 a.m. and killed the sleeping Vincent Charles Zazzara, age 64, with a gunshot to his head from a .22 caliber handgun. Zazzara's