Retail Security

Kerri Aherne has been charged in the Herald Square Macy’s bathroom stabbing; prosecutors say she bought the knife at the store, told police voices instructed her to “kill or be killed,” has a history of mental illness and was released from a psychiatric ward the day of the attack, and had a prior 2018 Massachusetts arrest over Facebook threats against Sen. Elizabeth Warren. The victim, a California tourist whose 10-month-old fell from a changing table and was treated for forehead swelling, and her husband — both Los Angeles County Sheriff’s Department employees from Jurupa Valley — helped subdue Aherne until store security arrived, and Macy’s has bolstered security including an expanded NYPD detail.