It reminds me of a plant bug (Miridae), and looks like it could be a nymph. I'm not having luck with a match.
Ah-ha! A lygus bug nymph! Cool!
About Lygus Bugs:
I do have a crab apple tree next to my pool, so he may have been munching on some apples!"Lygus bugs attack many field and vegetable crops and often attack tree fruits, particularly where they are near uncultivated land or alfalfa fields. Lygus bugs are found in Europe, Asia, and throughout the United States and southern Canada. Lygus lineolaris, also known as the tarnished plant bug, is the most prevalent species attacking tree fruits in the Northwest, but the brown lygus (Lygus hesperus) and the green lygus (Lygus elisus) are also common."
Nothing to add here :-(