Many pronouns such as she, he, it… require singular verbs. Others such as no-one, everyone, everybody, nobody, none, each… also do.
No-one was injured in the crash.
Everyone was there.
Nobody saw the incident occur.
Everybody is safe!
None of them had heard of him.
Each of them has a raincoat.
One hundred and twenty-four people were aboard the aeroplane, however, none was injured.