Minecraft Server player history?

My brother has a server that few (and friends of mine and mine) know about. Now the tree house was destroyed by my brother, a few other things as well. We both do not know who did it because we could not imagine it with any of the others.

There have been very few online so far, and most of the time, my brother or I have always been there.

Can you somehow check which players have been on the server so far?

In the server log search for "joined the game"?