I didn’t exactly cheat on this one…but it was a mean trick nevertheless.
This is a contorted cultivar of Larix (can’t remember the exact name and I’m out of town this week), hence the twisty needles. And indeed the tree is senescing. The newer growth (the second flush of the season) just wasn’t as prepared for fall as the older growth, which is yellowing naturally. So everything is just peachy with this tree.
Just goes to show you how important it is to know all the details when doing distance diagnosis!