St. Paul, Minn. biker catches stabbing suspect

Jerry Daye and his friends call their club, Good Guy Scooter Life, and on Sunday evening, they certainly lived up to their name.

"Yeah, I didn't think about it until after it happened and was like yeah that works," Daye said.

The group was stopped at a stoplight next to the St. Paul Cathedral when Daye heard a woman screaming for help.

"Something was up with that scream. That scream was really loud," Daye said.

Then he saw a man chasing Jason Sanford across the street yelling, "He did it. He did it."

So Daye gave chase, riding his bike down a grassy hill and catching up to Sanford in an empty garage where he put him in a headlock and held him until police arrived.

"He kept saying he didn't do anything. 'I didn't do anything'. But I just kept pace with him saying you did something. Something is wrong," Daye said.

It turns out Sanford had stabbed his ex-girlfriend in the arm as the two talked in her SUV near St Paul College, severing a main artery and causing her to lose 2 1/2 pints of blood.

But another Good Samaritan walking nearby heard her screams, called 911 and stopped her from bleeding to death while her husband ran after Sanford and flagged down Daye.

"In an age where people are more interested in filming encounters than interacting in encounters, this is a great example of people who made a difference for this woman," St Paul Police Spokesperson Sgt Mike Ernster said.

Daye even directed police to the sewer where Sanford had ditched his knife.

Hopefully this good guy helped put a bad guy away for a long time.

"I don't consider myself a hero. Just a guy in the right place at the right time willing to do something, you know," Daye said.

Sanford has several convictions in the last 10 years and had just been released from prison for assaulting his ex. He is now being charged with aggravated assault.