Updated

A Connecticut man who lost his wife and their 4-year-old daughter in the 9/11 terrorist attacks has died of cancer. David McCourt was 71.

Thomas L. Neilan & Sons Funeral Home in New London says McCourt died Thursday of metastatic melanoma.

McCourt's wife, Ruth, and their daughter, Juliana, were aboard United Flight 175 from Boston to Los Angeles to meet a friend of Ruth's at Disneyland. Their plane struck the south tower of the World Trade Center.

The friend was aboard the other plane that hit the north tower.

Ruth McCourt's brother was working in one of the World Trade Center towers that day but escaped.

David McCourt helped found B.R.A.V.E. Juliana, a program of HELP USA, to teach nonviolence and conflict resolution to children.

He later retired to Florida.