The legendary frontman of KISS, Paul Stanley shared a devastating message on his official Twitter account and sent his condolences to the people who lost their lives in the September 11 attacks.

As Paul shared his pain with his followers, he admitted that he will never forget that day.

Here is what Paul wrote:

“I will never forget the horror and my inability to comprehend what I was witnessing.

I honor in memory all those who have perished including the brave men and women who continue to suffer the effects of the cleanup following the attack.”

You can see Paul’s tweet and other users’ reactions below.