Sorry to hear about that accident. It is something which is more common than one might think. I have a friend who is a skipper of tugs out of Valdez, and have heard of this type of accident before.
About 20 years ago we had a fright. Going into Port Alexander, we were going to side tie to a fishing boat with our Cal 46. A very proficient gal was with us (she had a 1000 ton license, and had skippered tuna clippers out of A. Somoa. I told everyone to stay on our boat, and when along side, we would pass lines over. For some reason this gal decided to jump--and slipped when landing on the fishing boat, ending up on the water between the two boats--my engine was still running and the prop in gear. I killed the engine, and her husband and Marie, held the boats apart until we got the gal out of the water. Close call in many ways!