You posted this:
And anyway, finding any such examples are now impossible:
Google search 'White kid arrested at school' ... All that comes up is Ahmed Mohammed.
You can refine your Google search to set a date filter.
Click on "Search Tools", the toggle "Anytime", then click on "Custom Range", then enter dates with the most recent date being before the Ahmed incident--make it 30 days ago.
That should filter the search parameters to exclude anything that occurred since the Ahmed clock incident.