The quickest and easiest way to get your point across in a message can often be a screenshot. We've seen some pretty interesting ways to take them over the years, with different swipe gestures, button combinations and voice controls ... but luckily the Droid Turbo isn't doing anything funky. Though it has hardware capacitive navigation keys below the screen, it uses the same button combination as the Moto X to take screenshots.
Just press and hold both the power key and the volume down key for two seconds and the phone will capture a picture of the entire screen. You'll then get a notification indicating that a screenshot was captured — tapping it will take you into the gallery where you can edit or share it.