Is my engine dead?

Thor, it sounds like the timing chain/gear is worn out. Pull off the water pump and timing cover and take a look at it. Does it have heavy mileage? You said the guy drove it from Alaska, so when did it stop running or did it just not start one day? If chain jumped at high rpm you it may have encountered some valves hitting pistons, but maybe not. Are you sure ignition, fuel, etc is in order? If so pull cover and check it out. Mike