A woman walking in a crosswalk in one of Atlanta's most prestigious business districts was shot and killed Monday morning by a man wearing all-dark clothing, witnesses say.

CBS46 reporter Rebekka Schramm happened to be covering a story a block-and-a-half away when she heard three gunshots.

A woman, who was later identified as 40-year-old Trinh Huynh, was shot at close range at about 7:40 a.m. in the intersection of Peachtree Street and Peachtree Place, an intersection filled with drivers and pedestrians.

Police are still looking for the shooter. Detectives were looking through surveillance video at nearby businesses in an attempt to get a glimpse of the shooter. Witnesses described him as a white or Hispanic man who is roughly 6 feet tall.

Street sweeper Toney Booker and his colleagues were among the eyewitnesses.

"She was crossing the road, and he draws out his gun and shoots her three times," said Booker. "She drops, and he takes off running."

"Certainly a lot more people could have been hurt, and for that, we are glad," said Atlanta police homicide commander Lt. Ricardo Vazquez.

CBS46 reporter Natalie Rubino spoke to a man who saw the entire incident and locked eyes with both the shooter and victim.

"She looked surprised when he came up behind her...she was on her knees and she kind of like waived her arms and was flagging for help."

The witness who asked we not release his name said the shooter stared at him through his car windshield for at least five seconds and than ran past him.

"He looked scared when he saw. He thought he was the only one in the intersection," the witness said.

Atlanta police released video of the suspect right before the shooting. He appears to be wearing basketball shorts and a dark hoodie.

"It's crazy. It's just broad daylight, like, on Peachtree at that," said Booker.