I joined just to post in response to those putting down the captain and crew. The seas were bad enough to disable a sailboat and overturn a liferaft. When Laura was sadly separated from the crew, they probably could not even see her for waves (which were probably steep, short-period waves) or hear her for the sound of the water. In the dark, without knowing which direction to even go, letting go of the liferaft to search blindly would probably have been futile if not fatal. I have no doubt that if the captain (or another crew member) thought that they had even a remote chance of rescuing Laura, they would have done so.
Thoughts and prayers to the family, friends, and the crew.