In Lord of the Flies, how does Roger help in killing the sow?

In chapter
eight of , and his band find a sow to kill for meat. In the killing of the
sow, they show not only their savagery but also their descent into madness and evil. The boys
dont just kill the sow for meat, but their act turns into rape and tortureshowing the darkness
that lies at the human heart.

is Jacks Lieutenanthe is one of the cruelest
boys on the island, and he is the one who shoves his spear up the sows anus. He is also one of
the leaders on the hunt, and he is the one who attacks the sow after she collapses,

Roger ran round the heap, prodding with his spear whenever pigflesh
appeared....