Wisconsin Sikh temple shooting

Left: A man wipes away tears outside the Sikh Temple in Oak Creek, Wis. where a shooting took place on Aug. 5, 2012.

Sikh rights groups have reported a rise in bias attacks since the Sept. 11, 2001, terrorist attacks. The Washington-based Sikh Coalition has reported more than 700 incidents in the U.S. since 9/11, which advocates blame on anti-Islamic sentiment. Sikhs don't practice the same religion as Muslims, but their long beards and turbans often cause them to be mistaken for Muslims, advocates say.

Credit: AP Photo/Jeffrey Phelps