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The Key piece of evidence was the tape of an interview of Cathy Smith with a freelancer which lead authorities to convict Cathy Smith of murder of John Belushi.

Murder Case of comedian John Belushi

Former backup singer and rock groupie Cathy Evelyn Smith held as the offender of manslaughter in the 1982 drug overdose death of comedian John Belushi.

In this case the key piece of testimony that lead authorities to convict Cathy Smith of manslaughter in the death of John Belushi was:

A tape of an interview with a free-lance writer in which Smith admitted giving Belushi more than 20 injections of “speedball,” a mixture of heroin and cocaine, during the last 24 hours of his life.

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