Jewish communities held vigils nationwide following the mass shooting at the Tree of Life Synagogue in Pittsburgh on Saturday, September 27 that left 11 dead.

This video shows a ceremony being held at Congregation Har HaShem in Boulder, Colorado.

The shooter has been identified as 46-year-old Robert Bowers, who has been charged with 29 felony counts.

This was the deadliest attack against Jews in US history, according to the Anti-Defamation League.