OAK CREEK, Wis. — As worshippers prayed and meditated at the Sikh Temple of Wisconsin on Sunday morning, about a dozen women were preparing food in the temple kitchen for a post-service meal that is open to community members, regardless of religious affiliation.

AP Photo/Jeffrey Phelps

A woman reacts outside the Sikh Temple of Wisconsin in Oak Creek, Wis, after a shooting took place, Sunday.

Then the shooting started, sending terrified congregants scrambling for cover.

When the gunfire finally ended in a shootout between a gunman and police outside the temple in suburban Milw...