Young female workforce plays key role in production house's output

The arson attack on Kyoto Animation was the worst mass killing for two decades in Japan, a country with one of the world's lowest crime rates.

Fifteen of those who died were in their 20s, and 11 were in their 30s, public broadcaster NHK said. Six were in their 40s and one was at least 60. The age of the latest victim, a man who died in hospital, is not known, and the names of the dead have not yet been disclosed.

The attack was all the more poignant because of the young age of many of the victims in a nation with one of the oldest populations in the world.