Yesterday evening, WJLA broke the story that the alleged Columbia Heights shooter was an intern working in Councilmember Jim Graham's office. Graham had driven the suspect, Devyn Black, 19, to the Third District police station. Black turned himself in without incident.

At some point on Friday, Graham had heard from media sources that Black had been mentioned as a suspect. Graham tells City Desk that he tried to verify this with D.C. Police officials.

"I said 'hey is there any truth to this?' I was assured that there wasn't," Graham says. "He may have been somebody who's name was mentioned, but that was just all talk. Just all talk."

But Graham did confront Black. He called him into his office and questioned him about the shooting incident in which two adults were shot in the leg outside the Columbia Heights metro stop Thursday afternoon. In the shootings immediate aftermath, Graham had been on the scene talking to residents and police. That day Black attended the summer jobs program orientation at the convention center. Graham had told reporters about the incident at the convention center that involved police seizing the revolver and brass knuckles.

Graham says he asked Black about the shooting and whether he was involved. "I had previously asked him if he had done it," he says. "He had an alibi....I didn't know whether to believe him or not believe him. I felt that he knew more about it than what he was saying. He might have been on the scene."

Read More "Jim Graham Talks About Young Staffer Turned Alleged Columbia Heights Shooter" »

Jason Cherkis is on the scene for the press conference announced after yesterday's shooting at the Columbia Heights Metro.

3:37 Press conference hasn't started, but there's a band of protesters already across Irving Street. They're protesting the gang injunction. Roughly 10 of them, waving signs with a bullhorn. Protesters are changing, "Intervention, not injunction," and "Prosecute criminals, not innocent people." Press conference is 10 minutes late.

However, the fight at the convention center that yesterday Councilmember Jim Graham said was related to the shooting appears to be unrelated to this one.

Read More "Live From the Post-Columbia Heights Shooting Press Conference; Evans Says Think West Side Story!" »

Mayor Adrian Fenty's office has announced that a press conference will be held at the Columbia Heights metro stop this afternoon at 3:30.

The reason as stated in the press advisory is not a shocker. Fenty and Co. plan on using yesterday's shooting to press for the controversial gang injunctions. According to the advisory: "The Fenty Administration and members of the D.C. Council will address the recent gun violence in Columbia Heights, and push for emergency enactment of a gang injunction."

Read More "Fenty To Hold Press Conference @ Columbia Heights Metro Stop" »