SAN FRANCISCO (KGO) - The death of a social worker who was allegedly stabbed by a patient armed with a knife is raising concerns about the safety and security of a San Francisco hospital.

Alberto Rangel, 51, was a social worker at Zuckerberg San Francisco General Hospital. He died Saturday from injuries he sustained two days earlier when police say he was attacked and stabbed multiple times in the neck and shoulder by a patient armed with a 5-inch kitchen knife.

San Francisco District Attorney Brooke Jenkins announced Monday that 34-year-old Wilfredo Jose Tortolero Arriechi has been charged with murder. He is scheduled to be arraigned Tuesday afternoon.

Meanwhile, Rangel is being remembered as a deeply caring person.

“I’ll just say the social worker was one of the most beautiful peop

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