Edit : The casualties seem to climb up to 24.
https://www3.nhk.or.jp/news/html/20190718/k10011997421000.ht... ( Japanese. )
This is quite unprecedented.
Edit 2 : Prime Minister Abe offering condolences.
https://mobile.twitter.com/AbeShinzo/status/1151748479531667... ( Japanese. )
Life is hard enough in the anime industry these days as it is ( as several stories posted here have mentioned recently ), even in top notch studios like KyoAni.