For decades, Dorthy Moxley fought to find justice for her daughter, who was murdered at 15 years old in 1975. The prime suspect was Kennedy cousin Michael Skakel, whose 2002 conviction was vacated.

Dorthy Moxley remained a compelling figure in the story of a mystery that captured world attention with its wealth and celebrity, its dead-end investigations and an outpouring of films and publicity.

Dorthy Moxley, who fought for decades for justice for her daughter slain in 1975 in the gated Belle Haven neighborhood of Greenwich, has died, according to sources and multiple media outlets.