DETROIT -- Detroit Mayor Dave Bing is urging Detroit residents to be vigilant and get involved to help stem violence throughout the city.

"I'm a obviously upset and outraged," said Bing.

Bing met Thursday morning with two students shot while waiting for a public bus after summer-school classes. He also spoke with their families at a local hospital.

Bing told reporters that "looking at the two young people, it hurts."

"As bad as it is, they'll recover," said Bing.

He said his office will meet later Thursday with the top federal prosecutor in Detroit on a strategy to fight crime. Bing expects to have a plan in place before fall classes start.

"This is an isolated incident. These victims were innocent. They're children," Bing said. "They are the future of the city and we need to protect them."

The two students were among seven teenagers shot Tuesday near Cody Ninth Grade Academy.

"We as a community have to be outraged and not accepting this as OK," Bing said.

The meeting came a day after one of two suspected gunmen in the shooting surrendered to police.

Police identified Jamel Cameron Turner, 18, as one of the two shooters.

Investigators had gone to Turner's home on Asbury Park Street looking for him, but he turned himself in around 3 p.m. Wednesday. An arrest warrant had not been issued.

His lawyer said outside the police station that his client was innocent and was voluntarily turning himself in to clear his name.

Turner has a previous record. He was charged with larceny in Dearborn and charged as a juvenile in Detroit. Since he was charged as a juvenile, his record of the crime is sealed, but police said it was not of a violent nature.

One other person was arrested at the scene of the shooting Tuesday. Detroit Police Chief James Barren said he does not believe that person is one of the shooters, but the person arrested may shed some light on the case.

Investigators are still looking for two more people in connection with the shooting.

Two masked men holding semiautomatic guns emerged from a green minivan around 2:30 p.m. Tuesday and "asked for a person by name" before they "opened fire at the crowd," said Detroit Public Schools Police Chief Roderick Grimes.

At least 30 shots were fired.

Barron said police are looking for the other shooter and the driver of the getaway vehicle.

Police said security cameras at the gas station and the bank across the street captured the entire shooting on tape.

Police Release Surveillance Video Of Teen Shooting

Local 4 has learned the shooting may be linked to a gang dispute. The surveillance cameras show the two men, wearing their shirts over their head, exchanged words with a man at the bus station and may have flashed some gang signs.

The men ran around the block to where the minivan was waiting and then came back to the bus stop with guns and opened fire.

Anyone with information is asked to call the anonymous tip line, 1-800 SPEAK UP or go to the DPD Tip Line .

The victims' ages but not identities were released.

Police said two boys, ages 14 and 16, and a 17-year-old girl remain in critical condition.

The shooting victims that were already released were a 15-year-old boy, a 16-year-old girl and two 17-year-olds, a boy and a girl.

Sources said at least three of the teens had to have surgery.

Witnesses Speak Out About Shooting

Shooting victim 17-year-old Tenecia Walter spoke to Local 4 while recovering at Henry Ford Hospital.

"I saw a girl, she was just standing there and like she was stopped, like she couldn't move. I think she was shot in the back," said Walters.

"I fell and all I could do was crawl to the brick wall, and when I got up, I heard at least six gunshots," a witness told Local 4.

The girl did not want to be identified because she could possibly be a witness in the case. She also said she saw the gunmen pull up and she yelled at her friends to get down.

Another witness, who asked only to be identified as "P," said she tried to help one of the victims by giving him CPR.

"I was trying to aid him to keep him calm because I didn't want one of the kids who had got shot multiple times to bleed too much," P said.

Most of the students attending the summer school program at Cody were there voluntarily.

"It was nothing but the grace of God. As soon as I hit the apartment buildings, they started shooting and I was like oh God, please, please don't let these bullets hit me because bullets don't have names and I am not ready to die," said witness Bianca Howard.