Police personnel move outside the Sikh Temple in Oak Creek, Wis., where a shooting took place on Aug. 5, 2012.

Police personnel move outside the Sikh Temple in Oak Creek, Wis., where a shooting took place on Aug. 5, 2012.

Police storm a Sikh temple in Oak Creek, Wis., on Aug. 5, 2012, after a mass shooting Initially, police and witnesses described a chaotic situation with an unknown number of victims, suspects and possible hostages.

Armed police investigate the Sikh Temple in Oak Creek, Wis., where a gunman opened fire on Aug. 5, 2012.

Police block an intersection near the Sikh Temple on S. Howell Ave. in Oak Creek, Wis., where a shooting occurred on Aug. 5, 2012.

Police stand guard as bystanders watch at the scene of a shooting inside a Sikh temple in Oak Creek, Wis., on Aug. 5, 2012.

Bystanders sit in the shade near the scene of a shooting inside the Sikh Temple of Wisconsin in Oak Creek, Wis., on Aug 5, 2012. Greenfield Police Chief Bradley Wentlandt told reporters shortly after the incident that police found four dead people inside the building and three outside.

A woman reacts with others as they await word on a shooting at a Sikh temple in Oak Creek, Wis., on Aug. 5, 2012.

Bystanders flee the scene as police investigate a shooting at the Sikh Temple of Wisconsin in Oak Creek, Wis., on Aug. 5, 2012.

Family members wait outside a Sikh temple on S. Howell Ave. in Oak Creek, Wis., where a shooting occurred on Aug. 5, 2012.

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