Delete specific user session by system lock entry

My requirement is to delete a user session by the lock entry.

So assuming I have one lock entry in SM12 that I want to get rid of.

Instead of just deleting this lock entry I want to delete the session that causes this lock entry.

I know one connection is the User. However if the User has two sessions I would only want to delete that session that causes the lock and therefore automatically also get rid of the lock entry.

Any help much appreciated.

BR