John Du Pont's Relatives Contesting Will

Relatives are contesting the will of John du Pont, the chemical fortune heir who died in a Pennsylvania prison after killing an Olympic wrestler.

The Delaware County Daily Times reports du Pont left 80 percent of his multimillion-dollar estate near Philadelphia to a Bulgarian man and his family.

Du Pont's niece and nephew, Beverly du Pont Gaugger and William du Pont, filed a petition contesting the will June 8 in Common Pleas Court.

They allege Valentin Dimitrov and his relatives coerced du Pont into drafting a new will before his death last year. They say their uncle was not of sound mind.

Dimitrov, a former wrestler, once lived on the estate. His phone was disconnected.

Du Pont was found guilty but mentally ill of killing wrestler David Schultz in 1996.