Police have arrested 39-year-old Raylon Browning (pictured) over the shooting of Trinh Huynh in Atlanta on Monday morning

A man has been arrested over the shooting of a female lawyer in a 'targeted killing' that took place in Atlanta.

Trinh Huynh, 40, was shot several times at a busy intersection in midtown Atlanta shortly after 7:30am.

Police have now arrested 39-year-old Raylon Browning over the shooting. Officers found him on Monday night after he drove through a red light in nearby Cobb County, the Atlanta Journal-Constitution reports.

Deputy Chief Darryl Tolleson said the 39-year-old was also wanted on assault charges stemming from a separate incident on Sunday, where he allegedly stabbed two people.

The officers did not know Browning was a suspect in Huynh's murder when they arrested him, the Journal-Constitution reports. Police later found what is believed to be the murder weapon in his car.

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Trinh Huynh (left), 40, was shot dead on Monday morning during rush hour. Her killer was seen in CCTV footage (right), police claim

The arrest comes after CCTV footage showing the man - believed to be Browning - in the moments directly before and after the shooting on Huynh.

'We definitely believe that she was a target,' Lt. Ricardo Vazquez said. 'Why she was a target, we do not know that yet.'

The man was spotted walking down Peachtree Place to the junction of Peachtree Road, where he shot Huynh in the back before fleeing the way he came.

'I look up and see the woman, she just drops in the crosswalk bleeding,' witness Toney Booker told Fox 5 Atlanta.

Police believe Huynh was targeted although they aren't sure why. She had performed free work for sex trafficking victims, among others

'She's clutching her wound trying to keep pressure, and then she went unresponsive, So civilians run out to her and give her chest compression's to bring her back, while they're applying pressure.'

She was pronounced dead later, at Grady Memorial Hospital.

'The killer didn't talk to Huynh before he killed her - suggesting that the killing was 'targeted' - police said, earlier this week.

'We see him following her in another piece of video,' Vazquez said. 'There was another person in that intersection and it appears that he specifically targeted her.'

He added that the killer was unusually calm throughout.

A connection between the shooter and Huynh hasn't yet been established, Vazquez said.

Huynh (pictured in 1979) came to the US as a child immigrant from Vietnam, and went on to graduate from Princeton. She said she was thankful to the US and Georgia

Huynh was as an in-house lawyer at UPS who had previously worked at law firms Powell Goldstein and Alston & Bird, Law.com reported.

Outside of work, she traveled extensively and was active in both pro bono legal work and volunteering.

Huynh was a member of the Georgia Asylum and Immigration Network, which provides free legal services to immigrant victims of human trafficking, domestic violence, sexual assault and other crimes

The 40-year-old was born in Saigon, Vietnam, but came to America as a child immigrant. She graduated Princeton University in 1998 and Emory University School of Law in 2004.

In a January Facebook post, Huynh put up a childhood picture of herself that was taken at a refugee camp on Galang Island in Indonesia in 1979, after her family had fled Vietnam.

'We left under the cover of darkness, uncertain of where our tiny boat would drift and how long it would be seaworthy, uncertain if we would see land again,' she wrote.

'This is the face of a refugee. I am proud of my refugee status. I am thankful for the opportunities this wonderful country has afforded me and my family.

'I would not be here if the State of Georgia and this country had closed their doors and hearts to my family. I think this great state and the US have more love to give.'

Anyone with information on the shooting is asked to call Crime Stoppers on 404- 577-TIPS (8477)