People killed, President asks for "soul searching"

Sikh gunman was ex-soldier linked to racist group | Reuters: "Wisconsin has some of the most permissive gun laws in the country. It passed a law in 2011 allowing citizens to carry a concealed weapon.

President Barack Obama said Americans need to do more "soul searching" to find ways to reduce violence.

"All of us recognize that these kinds of terrible, tragic events are happening with too much regularity," Obama said at a White House bill-signing ceremony when asked whether further gun control measures were needed.

The shooting came just over two weeks after a gunman killed 12 people at a theater in Aurora, Colorado, where they were watching a screening of the new Batman movie."