Calgary police are releasing photos of two people who may have information in connection to the shooting death of two others at a Calgary restaurant back in 2008.

Tina Kong and Kevin Bath Ses, both 21, were gunned down four years ago while eating at the Food in East Restaurant in the 4100 block of Marlborough Dr. N.E.

Police were called to the restaurant on Sunday, October 26, 2008 at about 4:00 a.m. and found Kong and Ses dead inside.

Two other men were injured in the shooting and have since recovered from their injuries.

Police continue to make progress in the investigation and have released surveillance pictures of two people who may have information about the shooting.

"At the time we did collect information and now some years later with more information, we're able to add better context to that piece of information that we collected some years ago"said CPS S/Sgt Grant Miller.

The two men are considered persons of interest and the photos were captured by a camera in a convenience store near the scene at around the same time as the shooting.

"That is possible that we could tip persons off by releasing their photos in a situation like this but the balancing side to that is, we need a little more information than what we have now to advance the investigation.

Police say that the shooting is related to a long-standing grievance between two Calgary street gangs who are responsible for several high-profile acts of violence since 2005.

Investigators are asking anyone who has information about the men in the pictures to call Crime Stoppers anonymously using any of the following methods:

TALK: 1-800-222-8477
TEXT: tttTIPS to 274637