The assault on the 150-year-old congregation was the deadliest anti-Semitic attack in recent United States history.
Armed with a rifle and three handguns, Robert Bowers walked inside the synagogue during Saturday morning worship and began shooting, killing 11 and wounding six before police took him into custody, officials said.
In April 2014, Frazier Glenn Miller Jr. fatally shot a 69-year-old man and his 14-year-old grandson at a Jewish community center in suburban Kansas City, then killed a woman at the nearby Village Shalom retirement center.
The survivors included Daniel Leger, 70, a nurse and hospital chaplain who was in critical condition after undergoing surgery, his brother, Paul Leger, told the Pittsburgh Post-Gazette.
"As a German, I can say that it is really horrifying that something like this can happen today, keeping in mind the history", Spitzer said, referring to oppression that Jewish people have endured, including the Holocaust.
It's yet to be seen how Trump's reaction to the anti-Semitic rhetoric exemplified by the Pittsburgh synagogue shooting will be interpreted by future historians.
He also reportedly referred to a group of several thousand impoverished Central American migrants that is now attempting to walk north to the United States. "Screw your optics, I'm going in".
The Jewish Federation of Greater Vancouver is hoping the community continues to show support for the victims.
Infeld says the tragedy has rippled through the community, but it has also brought people together, from different faiths, to rally against hate. The organization also helped Jewish newcomers navigate through immigration screening at Ellis Island.
The massacre came at a time of increasing anti-Semitism in the U.S. Earlier this year, the Anti-Defamation League reported a almost 60 percent rise in anti-Semitic incidents in 2017 - the largest single-year increase since the ADL began its tracking almost three decades ago.
Bombs were sent to Obama, Clintons, CNN - USA
Another suspicious package resulted in the evacuation of the office of Florida US Representative Debbie Wasserman Schultz. In addition, CNN's New York City studio was evacuated Wednesday morning due to a suspicious package being found .
Israeli Prime Minister Benjamin Netanyahu said he was "heartbroken and appalled" by the attack.
'I'd like to start with saying our thoughts, love, and prayers go to all of the victims of yesterday's senseless shooting in Squirrel Hill especially from me and family to Michele [Rosenthal]'.
However, with fierce arguments erupting over whether Trump's own daily rhetoric is feeding the increasingly unsafe climate, even the subject of a possible visit has become a bone of contention.
The synagogue is located in the tree-lined residential neighborhood of Squirrel Hill, about 10 minutes from downtown Pittsburgh and the hub of Pittsburgh's Jewish community.
Its sanctuary can hold up to 1,250 people.
Rabbi Jeffrey Myers of the Tree of Life in Pittsburgh said Monday on ABC's "Good Morning America" that he hadn't always carried a cellphone on the Sabbath.
School police will work closely with City of Pittsburgh Police to ensure there is an appropriate presence throughout the district.
Authorities say he expressed hatred toward Jews during the rampage Saturday and in later comments to police.
When the shots subsided, he said, Melvin Wax opened the door, only to be shot and fall back inside.
"We are devastated", said the group's head, Jonathan Greenblatt.