A Philadelphia woman saw another woman in distress Monday afternoon and stepped into an alleged sexual assault with what she already had in her hand: a bike helmet.
Mary Martin told 6abc Action News that she confronted the man, struck him with the helmet, and followed him as he left the scene in the city’s Point Breeze neighborhood.
Then Martin reconsidered. She realized chasing him could put her in danger, so she stopped long enough to photograph the fleeing man before returning to check on the 63-year-old victim.
Those photographs were later given to detectives. As of Tuesday, the man had not been identified publicly, and police were still searching for him.
Helmet In Hand
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The alleged assault happened around 4:15 p.m. Monday near 18th and Federal streets, according to 6abc’s report.
Martin said the victim was visibly upset while the man appeared to be casually walking away. She was holding her helmet and began hitting him with it.
Another witness described seeing Martin running after the man with the helmet while repeatedly yelling, “How dare you?”
Martin followed him before deciding the pursuit itself had become unsafe. Instead of continuing after him, she took photographs as he ran.
The images ultimately became part of the effort to identify the man. Martin gave them to detectives and then returned to the victim.
A Different Move
Martin told the station that her decision to intervene did not come entirely out of nowhere. She credited previous training and what she had learned about the “bystander effect.”
Research on bystander training provides some support for that connection, although much of the published work concerns prevention programs rather than strangers interrupting assaults already underway.
A 2021 systematic review examined 44 U.S. and Canadian studies of sexual-violence bystander programs. Only about a third of those studies measured participants’ actual behavior after intervention training, but most of that subset reported beneficial outcomes. The review concluded that in-person training can improve attitudes and behaviors by increasing awareness and a sense of responsibility to act.
That does not mean intervention always looks like direct physical confrontation.
A 2025 study of public harassment based on 541 reports from 10 Belgian municipalities found bystanders intervened in 28% of incidents in which witnesses were present. Victims were significantly more likely to report feeling supported when someone intervened.
Martin’s own actions shifted within a matter of moments: confrontation, pursuit, photographs, then a return to the victim.
Photos From The Chase
Martin said the man had not stopped while the victim was yelling. His behavior changed after someone outside the immediate encounter challenged him.
After taking the photographs, Martin accompanied the victim to Philadelphia’s Special Victims Unit to make a report, according to 6abc.
The station reported that the victim had been visiting a family member in Philadelphia.
Police subsequently released the photographs Martin took while the man was running from the area.
As of 6abc’s Tuesday report, police were still trying to identify and locate him.