When those mages escaped, with the exception of the purple-robed mage, Saleen had recorded all of the energy vibrations of the remaining five mages. That enabled him to trace them as yellow light flashed beneath his feet, pursuing them all the way outside the metal tower.
The escaping mages were preoccupied with running away, resulting in them focusing on flying as far as they were able, killing no one in the process.
There was only one exit to the Baldur's Gate after all, and they had yet to master the equipment. It would have been the end of them if they were to be trapped inside.
They were in shambles and had been cornered before they were even able to actually fight Saleen. However, with even their leader gone, there was little they were able to do. They should have split the six godly items among themselves, and yet their leader had taken everything for himself.
All of the escaping mages were still feeling wronged about that.
