Sweden's worst ever mass shooting this week has raised questions about the country's gun laws and widespread gun ownership. Police said the suspected gunman had a license for four guns, three of which were found by his body at the school where the attack took place.

Sweden is reeling from the country's deadliest mass shooting this week as investigators continue to look into the gunman's motive

A gunman opened fire at an adult education center in the Swedish city of Örebro on Tuesday, killing at least 10 people in what the country’s prime minister called the “worst mass shooting in Swedish history.