Tammy Hepps, one of a group of progressive Jewish leaders who penned a letter to President Trump Donald John TrumpBiden says voters should choose who nominates Supreme Court justice Trump, Biden will not shake hands at first debate due to COVID-19 Pelosi: Trump Supreme Court pick 'threatens' Affordable Care Act MORE telling him that he is not welcome in Pittsburgh until he renounces white nationalism, said Tuesday that Trump has blood on his hands following Saturday's mass shooting at a Pittsburgh synagogue.

Hepps's comments came just days after members of the Pittsburgh affiliate of Bend the Arc: A Jewish Partnership for Justice denounced Trump following the shooting at Tree of Life Synagogue that left 11 congregants dead.

The letter had been signed by more than 76,000 people as of Tuesday afternoon.

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"We know that we are representing tens of thousands of Jewish people who have already signed, and people across the U.S., around the world, who feel that the blood of these victims is on President Trump’s hands," Hepps said on CNN. "He has knowingly and intentionally and selfishly for years used this rhetoric to endanger our community."

Hepps added that the letter states Trump is not welcome in Pittsburgh until he renounces "the words and the policies and the deeds that you have done that led to this day."

Robert Gregory Bowers, 46, on Saturday was arrested and charged in connection with what the Anti-Defamation League calls the deadliest attack against Jews in American history.

It was the third mass shooting in a place of worship in the last three years.

Trump quickly condemned the tragedy, calling it an "assault on humanity." Members of Bend the Arc cast blame on Trump's rhetoric for the incident.

“Our Jewish community is not the only group you have targeted,” the group wrote. “You have also deliberately undermined the safety of people of color, Muslims, LGBTQ people, and people with disabilities. Yesterday’s massacre is not the first act of terror you incited against a minority group in our country.”

The group said Trump is not welcome in the city until he also stops targeting minorities, immigrants and refugees.

Tree of Life's rabbi, Jeffrey Myers, has said Trump is welcome to visit the city.

Trump and the first lady are scheduled to travel to Pennsylvania on Tuesday to meet with victims' families.