Michelle Henson, 37, was last seen on February 24, 2010, in Key West, Florida. She lived aboard a houseboat anchored in Cow Key Channel between Key West and Stock Island and was seen by neighbors Darrell Henshaw and Brendan Coughlin taking her dinghy to shore. By the next day neither Henson nor her dinghy could be found; her bicycle was still locked where she usually kept it.

The U.S. Coast Guard and local law enforcement conducted an extensive search but found no trace. Weather at the time was rough, and some authorities have suggested an accidental swamping of the small dinghy. Henson’s family has raised concerns about foul play after finding items they believed were blood-stained on her boat. Investigators questioned the two men who reported her missing but have not named them as suspects.

Henson had a troubled past, including legal problems and alcohol dependence, and was on probation for a domestic battery charge; her family said she had enrolled in college and hoped to become a substance abuse counselor. Does anyone who knew Michelle or lived on Cow Key Channel in February 2010 have information that could help explain what happened?