Progress in gang killings, but no arrests imminent

This day last week, there was a sight that was as surreal as it was terrifying.

Two men, dressed as masked elite gardaí, each brandishing military assault weapons, were photographed entering the Regency Hotel in north Dublin.

Also captured, a few minutes later, was the extraordinary sight of two men, one dressed as a woman and both armed with a handgun, running from the scene.