After the tragedy in Oak Creek, Wisconsin Sunday, the Sikh faith has been thrown into the national spotlight. CNN's Erin Burnett delves into Sikhism in America.
Explainer: Who are Sikhs and what do they believe?
Sikhism, the world's fifth most popular religion, is a monotheistic faith that believes in equality and service to others, Sikh officials say.
"Everyone is the same," says Raghunandan Johar, president of the Guru Nanak Mission of Atlanta. "There is no distinction, no caste system."
Navdeep Singh, a policy adviser to the Sikh American Legal Defense and Education Fund, says Sikhs believe in freedom of religion, community service and inclusiveness.
At temples, or gurdwaras, where Sikhs hold services, everyone is welcome.
"You can come and be equal," he says.