Bidayuh Siyokians shooting fellow Ibans on a field.
The Tuchum Massacre was a massacre in Bloxarwak, New Luobu that lasted two hours. Leozaryo wanted to move the Ibans to the Kalimantans, but in order to do that, he might have to subdue them. Another reason is because Ibans were historical enemies with the Bidayuh tribe. Leo got angered about this, wanting to take revenge, and women and children were workers forced not to rest.