Time for me to climb on my soapbox: this was a classic "impossible turn" accident. If he had not caught the wire/pole.whatever and ruptured the tank the story would have ended differently. PAE is 600' above sea level, the town of Mukilteo slopes down toward the water. Had he opted to land straight ahead or plus-minus 45 degrees he had in excess of 600 feet (don't know the altitude when he began the 180) in which to select something soft and cheap.
Always plan to lose an engine at the worst possible time and have an action plan in mind. Emergencies cause tunnel vision, so you must rely on training and practice to get you through the tight spots. How log has it been since you eyeballed the terrain off the departure end of the runway you plan to use for takeoff with an eye to locating that cheap, soft alternative?
Edit: Just checked Google Earth. There are wooded areas within 30 degrees of the runway 16 centerline.
Bob