A child was among four people killed in a shooting at a Southern California office building that left a fifth victim and the gunman critically wounded.
- Police are unsure what prompted the attack
- The attack was in the city of Orange, 48 kilometres from Los Angeles.
- This is the third mass shooting in the United States in less than three weeks
The violence in the city of Orange, southeast of Los Angeles, was the US’s third mass shooting in just over two weeks.
When police arrived at the two-storey structure…