Twitter’s role in the January 6th insurrection is once again in the spotlight. During a hearing on Tuesday, the House Select Committee investigating the January 6th attack played testimony from a former Twitter employee who said they tried to warn others at the company that there would be violence on January 6th.

The committee pointed to a December 19th tweet from former President Donald Trump in which he promised a “wild” protest in Washington D.C. on January 6th. The tweet, they said, “served as a call to action, and in some cases as a call to arms” to his supporters.

By January 5th, the former Twitter employee said that it was clear the protest would turn violent, but that “no intervention was coming.” The committee didn’t identify the former employee, whose voice was obscured in the recorded testimony. Representative Jamie Raskin said the former employee “was on the team responsible for platform and content moderation policies” and worked at the company throughout 2020 and 2021.

“I had been begging and anticipating and attempting to raise the reality that if we made no intervention into what I saw, people were going to die,” the employee said. “And on January 5th, I realized no intervention was coming.”

The employee also stated that Twitter had considered changing its rules earlier in 2020 following Trump’s comments telling the Proud Boys to “stand back and stand by” during a presidential debate, but that the company ultimately declined to do so.