Keith Richards of the Rolling Stones is paying his respects to Universal Music exec Thomas Ayad, who was killed during the recent terrorist attacks in Paris.

Ayad was killed at an Eagles of Death Metal concert being held at the Bataclan Theater on November 13.

More than 120 people were killed in a series of coordinated terrorist attacks that occurred in Paris.

Richards paid his respects to Ayad on Twitter. "My heartfelt condolences go out to the family and friends of Thomas Ayad.

Words cannot express the horror of what happened in Paris. I am horrified by the tragic events that took place in Paris last Friday night."

Fellow artists such as Metallica, who also worked with Ayad, have also have publicly paid their respects to him.