I accidently stepped on a snail this morning in my garden. When I came home from work later.....?

It was surrounded by about 20 other snails. One of them was actually touching it. I think the snail I stood on is dead but what are all these other snails up to? Are they sad and visiting their dead friend or are they gonna eat him? I just thought it was a bit strange to see, made me feel a bit guilty lol. I hate killing things.