‘I regret we weren’t able to arrest the suspect earlier’

The carnage caused by Anders Breivik began with a bomb in Oslo and culminated in a massacre of young people on the island of Utoya.

Eight people were killed when his device exploded at the high-rise building in Oslo at 3.26pm local time on July 22 last year.

It left a dust-clogged square covered in twisted metal and shattered glass.