Laravel 404 Page

I am looking for 404 page for particular controller.Right now if id not found then it loads 404 page from App\Exceptions\Handler.But now problem is i need to show different 404 page for particular controller .Is There a way to override 404 exception in particular controller

if($request->segment(3)==null){

return view('errors.newerror');
} else {

return view('dataview');
}

I tried above code but its showing handler 404 page

Updated

if($request->segment(3)==null)
{
return abort(sat_error);
}else{
        echo '<img alt="" src="'.$url.'">';
        }

I have tried above method but still its loading default 404

via Chebli Mohamed