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.

John Du Pont's Relatives Contesting Will
The chemical fortune heir who died in a Pa. prison last year, left most of his estate to a Bulgarian man and his family.
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