BROCKTON (CBS) – Two women were killed in separate crashes in Brockton Tuesday.

Police are still looking for the driver who struck and killed a woman on Pleasant Street at about 6:15 p.m. Officers examined the victim’s sneakers left in the street, the same sneakers Shaun Banion saw as he drove home from work, prompting him to pull over.

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“I see a shoe, a couple shoes out in the street, didn’t want to hit it with my car, as I caught in the corner of my eye, I saw a foot,” Banion said. “I thought that can’t be a real foot.”

He tried to help the woman and called 911 immediately, but says it was already too late.

It was the second fatal crash in Brockton on Tuesday. The first happened just hours earlier on Belmont Street.

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A fatal Brockton crash involving three cars. (WBZ-TV)

“You just heard a big collision and when I looked out you just saw cars spinning, the other two cars flying across the street so I ran outside and I ended up calling 911,” said Sandra Shaw.

Witnesses say a man blew through a red light, causing a 3-car pileup and killing the woman driving a white car. Witnesses said the suspect tried to run away before police arrested him.

The district attorney’s office is now investigating. “Actions have consequences and we have a deceased woman and we have a terrible event that occurred here in the city of Brockton and we have a responsibility to make sure that we go slow and steady with our investigation, find out exactly what happened,” said Plymouth County District Attorney Tim Cruz.

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Police have not identified the victims in either crash.