Another news report on a different website said the driver was waiting for traffic to clear before turning north onto River Road from Irving. That's a busy intersection, especially on a Friday evening this time of year, and there are street lights on all four corners plus plenty of ambient lighting.  The story didn't indicate in which direction the Suths, who live about a mile west off Irving, were crossing River Road. If they were going west, they probably saw the approaching SUV rolling into the intersection before the turn and assumed the driver saw them, too; if they were going east toward Hunsaker, they probably assumed the SUV driver saw them step off the curb to his left.

However, the driver likely was seeing only the approaching headlights of a vehicle or two crossing toward Irving. Once they passed, routine behavior took over. It was careless driving, of course. He yielded to the oncoming traffic. Why should the pedestrians in a crosswalk expect anything less?