Mass killings with unknown preparators?

The only mass killing with an unknown perpetrator I know about is the 2008 Lane Bryant mass shooting that killed 5.

This is somewhat outdated but: https://morbidmysteries.blogspot.com/p/unsolved-mass-murders.html

Carnations wrote:

This is somewhat outdated but: https://morbidmysteries.blogspot.com/p/unsolved-mass-murders.html

 Thank you for this.

I'm not very interested in unsolved mass murders so I don't know many, I would say the most interesting case is the Hebei Lime Plant Stabbings with 8 Deads.

I know of several cases where the name of the perpetrator is unknown or at least I don't know, but it is probably not the definition of "Unknown" you are looking for, but if you are interested, I recommend you search about the borno shooting of 2022, a Nigerian soldier killed 7 and injured 16 others before fleeing and being later arrested, although a motive has not been stated, it is believed that drugs and a PTSD trauma could have played a role, I was a little surprised to learn about it since I had been looking for cases in Africa for months and I found out about that incident recently despite it being very deadly.

Isabell.Sholl wrote:

I'm not very interested in unsolved mass murders so I don't know many, I would say the most interesting case is the Hebei Lime Plant Stabbings with 8 Deads.

I know of several cases where the name of the perpetrator is unknown or at least I don't know, but it is probably not the definition of "Unknown" you are looking for, but if you are interested, I recommend you search about the borno shooting of 2022, a Nigerian soldier killed 7 and injured 16 others before fleeing and being later arrested, although a motive has not been stated, it is believed that drugs and a PTSD trauma could have played a role, I was a little surprised to learn about it since I had been looking for cases in Africa for months and I found out about that incident recently despite it being very deadly.

WOAH ZELLAWEISTDAY3 WITH HER DOGEATER ASS FACE PFP SO FUCKIN SMART TOTALLY LIKE NO ONE CARES FRFR NO CAP

2018 Rakai school arson
21 june 2000 Lycée central St-Gabriel massacre (unclear) (in french only)