Erin Piacenti, a 32-year-old Bank of America vice president and new mother, was stabbed to death in Times Square on her first week back from maternity leave, killed in broad daylight by a woman police say had a known mental health history but was never arrested.
Piacenti was walking through one of the most heavily policed stretches of pavement in America on Monday afternoon when Pamela Cisneros Lopez, 49, of Queens, pulled two kitchen knives from a red Target shopping bag and began attacking strangers. Lopez first stabbed a 68-year-old man who was waiting to cross the street with his wife, then plunged a blade into Piacenti's abdomen. Piacenti died from her injuries that afternoon. The older man was hospitalized in stable condition.
The entire sequence, two stabbings, a standoff, a failed taser deployment, and a fatal police shooting, unfolded in roughly 20 minutes, Breitbart reported, in a district packed with commuters, tourists, and families on a Monday afternoon.
Piacenti, from Chester, New Jersey, held the title of vice president of business selection and conflicts at Bank of America. She had spent the previous five months on maternity leave caring for her newborn daughter and was in her first week back at the office when she was killed, Fox News reported.
Social media posts indicate she had recently celebrated her second wedding anniversary after marrying her husband Frank in August 2024.
Bank of America released a statement after her death: "We are shocked and deeply saddened by the tragic loss of our colleague. She was a valued teammate who will be greatly missed. Our hearts go out to her family and all of her loved ones."
A young mother. A professional with her career ahead of her. Walking through Midtown Manhattan in the middle of a workday. That is who this city failed to protect.
NYPD officers reached Lopez quickly after the stabbings. A witness who recorded the encounter on smart glasses told PIX11:
"She ran down, the cops went by, they surrounded her, talked to her for like five minutes."
During that standoff, Lopez refused to drop the two kitchen knives. Police Commissioner Jessica Tisch said Lopez told officers directly: "I'm not dropping anything, I would rather kill both of you."
Officers deployed a taser. It did not stop her. Lopez continued advancing. Officers then fired, and Lopez fell to the ground. She was handcuffed and given first aid at the scene. Multiple outlets reported she was fatally shot, though the body of the primary account notes only that she was handcuffed and treated after going down. Newsmax reported that Cisneros was shot and killed by officers after refusing to drop her weapons.
Police released an image of the two knives recovered at the scene. The attack happened near a police station, in one of the most surveilled and patrolled intersections in the country.
The attack scattered pedestrians across Times Square. Hassan Abdallah, who works at a fruit cart on 41st Street and Seventh Avenue, about two blocks from the scene, heard it before he saw it.
Abdallah told reporters:
"I heard a lady screaming and then people were running like crazy. I went outside [the cart]. I saw an old guy, like 60, Asian. He was standing, holding his back. He got stabbed."
He said the man's wife tried to stop the bleeding with a book or paper, then someone handed her a scarf. Abdallah gave the man a paper towel. The wife told her husband to lie on the ground.
The randomness of the violence, a man waiting to cross the street, a young mother walking through Midtown, is the kind of incident that has shaken New Yorkers before. And it keeps happening.
Witness Linda Ruiz, who spoke to the Daily News, found Piacenti on the ground:
"I went to get a cop on the corner and there was another lady on the floor. She was stabbed in the back or in the chest, I couldn't tell. There was a lot of blood. She wasn't conscious. The police were trying to resuscitate her, but she wasn't moving. It was horrible."
Ruiz also described finding the male victim: "I saw a guy bleeding profusely from his right leg. He was gushing blood, saying 'I need help. Help me.'"
At a press conference Monday, Commissioner Tisch appeared alongside Mayor Zohran Mamdani and confirmed that Lopez had a "documented mental health history" with the department, including two incidents in 2018 and 2019. She was never arrested in connection with either encounter.
Tisch said police found no evidence suggesting the attack was terrorism. ABC 7 reported that the incident was initially called in as a knifepoint robbery. Police now believe Lopez had no clear motive. She was described by officials as emotionally disturbed.
Tisch addressed the danger of the setting directly:
"This was an extraordinarily dangerous situation unfolding in the heart of Times Square, the crossroads of the world. At any given moment, there are thousands of New Yorkers, commuters, tourists, families, workers moving through these streets."
She praised the officers who responded: "Our officers were confronted with a rapidly evolving threat with countless innocent people around them. In that moment, they did what we trained them to do."
The officers did their job. The system that was supposed to track and manage a woman with a documented history of mental health crises, a woman known to police for at least seven years, did not.
This is the part of the story that should keep city officials awake at night. Lopez was on the NYPD's radar. Twice. In 2018 and again in 2019, she had encounters serious enough to produce a documented mental health record with the department. And yet she walked free, without an arrest, without any apparent intervention that kept her from carrying two kitchen knives into the busiest pedestrian corridor in the Western Hemisphere.
New York's approach to the mentally ill and dangerous has been a subject of fierce debate for years. The city's leadership has repeatedly resisted calls for stronger involuntary commitment standards and more aggressive intervention for people who pose a clear risk to public safety. The result is a system that documents threats but does not neutralize them, one that creates a paper trail instead of a safety net.
Stabbing attacks by individuals with violent histories are not new to New York. Neither are the press conferences that follow, full of praise for first responders and short on answers about why the attacker was on the street in the first place.
Lopez attacked two strangers within 20 seconds, according to Fox News. Twenty seconds. That is the margin between a normal Monday afternoon and a young woman bleeding out on the sidewalk while police try to resuscitate her.
Violent crime involving edged weapons has drawn attention far beyond New York's borders. But the city's failure to act on its own mental health records makes this case particularly difficult to defend.
Erin Piacenti was 32. She had a newborn daughter and a husband named Frank. She went back to work after five months at home with her baby. She walked through Times Square on a Monday afternoon, and a woman the city already knew about, and chose not to stop, ended her life with a kitchen knife.
No amount of public mourning will change the fact that this was preventable. The question is whether anyone in New York's government has the will to make sure it does not happen again, or whether the next press conference is already written.
When a city knows a person is dangerous and does nothing, the next victim's blood is not just on the attacker's hands.