Watampone massacre - man kills eight because guests laughs at his fart

Another interesting case I found on Amok Wiki.

Watampone massacre info:
In July 1922 a man killed eight people and wounded at least 23 others in Watampone, Dutch East Indies. The man ran amok at a wedding when the other guests laughed at him, because he had farted. He was wounded in the head and shoulder himself and taken to hospital.

Source: Amok Wiki article

Unfortunately there appears to have no more sources on this case.

TheDragonoid wrote:

Amok Wiki is my favorite place on the internet. Only there you can find such lulzy cases of true crime.

True. Another example is Zhao Xiaodong, where he killed five people on a bus, and the police killed seven more people accidentally.

Enesbrietchvonfrederitch wrote:

Another interesting case I found on Amok Wiki.

Watampone massacre info:
In July 1922 a man killed eight people and wounded at least 23 others in Watampone, Dutch East Indies. The man ran amok at a wedding when the other guests laughed at him, because he had farted. He was wounded in the head and shoulder himself and taken to hospital.

Source: Amok Wiki article

Unfortunately there appears to have no more sources on this case.

I wonder what weapon he used ?