Translation of "itko" into English

Nema jamstava da će itko kupiti moju knjigu.

There's no guarantee anyone will buy my book.

U redu, znate li ikoga ko bi vas želio povrijediti?

All right, can you think of anybody that might want to harm you?

Zato jer ne znamo hoće li se itko od uhoda uspjeti vratiti.

Because we don't know if any of our scouts will make it back.