Community members created a makeshift memorial to honor shooting victims on Murray Avenue in the Squirrel Hills neighborhood of Pittsburgh. The man, who gave himself up to police, has been charged with 29 federal counts, and, according to Attorney General Jeff Sessions, will most likely face a death penalty.
"How do we tell our children in a time when hate seems to be escalating", said Rabbi Susan Talve.
Bowers surrendered, and was taken to a hospital where he was listed in fair condition with multiple gunshot wounds.
Daniel Stein, 71, of Squirrel Hill.
"At least this family does not want to meet with him", Bill Cartiff, who was mourning with the family of victim Melvin Wax, told the Pittsburgh Post-Gazette.
The mass shooting prompted security alerts at houses of worship around the country.
President Donald Trump addressed the shooting at length on Saturday, denouncing it as "a wicked act of mass murder", saying: "We must stand with our Jewish brothers and sisters to defeat anti-Semitism and vanquish the forces of hate". Law enforcement could need up to a week to fully examine the crime scene, he said.
"I've heard the president's comments about how we should arm guards in our synagogues, our churches, our mosques".
US Representative Adam Schiff, a Democrat who is Jewish, said on Sunday the country needs to combat a climate of hatred and division that he said Trump helped foster.
Shafir said his organization regularly meets with the Edmonton Police Service and officials are aware of extra security the community requires.
"We will not try to rationalize irrational behavior", Peduto continued. The youngest of the victims was Cecil's brother David Rosenthal, 54, who also had an intellectual disability. They included Rose Mallinger, age 97, and couple Sylvan and Bernice Simon, both in their 80s.
He said we are dealing with irrational behavior and that there's no way to rationalize a person walking into a synagogue during services and killing 11 people.
Worshippers "were brutally murdered by a gunman targeting them simply due to their faith", said Bob Jones, head of the FBI's Pittsburgh office, though he cautioned the shooter's full motive was not yet known. Authorities believe the suspect entered the synagogue, opened fire on the worshippers and was fleeing when he encountered a police officer, Jones said. The pair exchanged gunfire, Jones said, and Bowers reentered the building before a SWAT team arrived.
"It could have just as easily been our congregation", said Rabbi Aaron Bisno of nearby Rodef Shalom.
"Through this campaign, we hope to send a united message from the Jewish and Muslim communities that there is no place for this type of hate and violence in America", the groups said.
Though Bowers hid his anti-Semitic rage from his neighbors, it was on full display online.
In one, early on Saturday, he wrote that a Jewish refugee group, the Hebrew Immigrant Aid Society, "likes to bring invaders in that kill our people". I can't sit by and watch my people get slaughtered. "Screw your optics, I'm going in", he posted.
"After a raging anti-Semite shot up a holy place of worship on our Shabbat and murdered our extended Pittsburgh Jewish family, we needed to be here because in times like these we need community", said Jeff Finkelstein, CEO of Jewish Federation of Greater Pittsburgh.