SAN FRANCISCO (CN) — Wilfredo Tortolero Arriechi, the man accused of murder in the stabbing of a social worker at Zuckerberg San Francisco General Hospital in December, reentered his plea of not guilty at his secondary arraignment Monday.
Tortolero Arriechi, 35, was charged with murder on Dec. 8, 2025, after the stabbing of 51-year-old social worker Alberto Rangel.
Prosecutors say Tortolero Arriechi, who was a patient at the hospital’s HIV clinic, Ward 86, showed up at the clinic Dec. 4 to speak to his doctor, carrying a concealed knife. They claim he talked to Rangel, who asked him to leave. As the two men walked to the elevator, prosecutors say Tortolero Arriechi grabbed Rangel from behind and stabbed him multiple times…