Holy shit Australia might technically have just had it's most deadly mass shooting in over 20 years.
https://www.bbc.com/news/amp/world-australia-44078258
Authorities were called to the scene at 05:15 local time (21:15 GMT on Thursday) after receiving a call from a "male person"
do they get a lot of calls from non-persons?
Other articles mentioned they received an anonymous tip-off and police confirmed it to be a murder-suicide, so I suspect that call was from the perpetrator him/herself.
I know in Aussie rural areas (probably applicable overseas), suicide victims often phone emergency services to provide a location for ambos to pick up after what's left. That's how a family friend departed this world.
No doubt this event will be politicised abroad, but don't forget that a woman stabbed to death 8 children in Queensland a few years ago. Mass killings tied to domestic violence and mental illness aren't really talked about.
I don't think this fits a mass shooting either, it wasn't indiscriminate. Rural folk, particularly farmers, have had firearms for a long time in Aus. They're not usually the ones out to harm others in public.