Maurice Osbourne couldn't believe everyone just stood there.
The 37-year-old was on the No. 3 train at Bergen Street in New York City when he heard a woman scream that someone was trying to rape her.
"As soon as she said that he was trying to rape her, I just reacted," Osborne told CBS2 on Friday. "I wish the conductor stayed. The conductor didn't even stay. The train left."
Osbourne, though, did the opposite of leave. He took action. At 6-foot-1 and 200 pounds, he had the strength to grab the alleged assaulter and separate him from the woman.
He demonstrated the grip he took on a reporter.
The man who Osbourne confronted was identified as 40-year-old Alvaro Dennica. According to reports, Dennica was "allegedly fondling himself in the last subway car" before following 28-year-old off the car, onto the platform and then jumping on top of her.
But help was on its way.
Moments later, Dennica was being dragged up out of the subway and across the street to the 78th precinct by Osbourne. The woman, who remains unidentified, followed Osbourne into the police station and confirmed with officers that the man had in fact been assaulting her.
During the scuffle, Osbourne suffered a blow to the face that left him with six stitches above his eye and a hand that "looked like a water balloon."
Unfortunately, news of assaults like this is nothing new in The Big Apple. Misdemeanor sexual assault cases have jumped 45 percent in New York City from May of 2014 to May of 2015. Felony sexual assaults rose eight percent over the same time period.
Osbourne, who lives in a shelter while he studies to become a medical assistant, told the CBS affiliate that he hopes more people will follow his lead.
"I like helping people," he said. "It makes me feel useful."