Group by "Source User". Otherwise events are treated individually. Also... unfortunately, this is the only way to do this, you can't select by the "distance" in anyway with the built in tools.
That's too bad - because you can "Drill into" state, country, region, etc... but I guess your cannot use that for logic in a correlation rule... to bad.
more limitations..
Corporate Headquarters
6220 America Center Drive
San Jose, CA 95002 USA