Soundgarden front man Chris Cornell's family are disputing the medical examiner's finding that the singer intentionally took his own life.
A lawyer for the 52-year-old's family want a toxicology report to show whether he was under the influence of drugs or alcohol when he died.
"The family believes that if Chris took his life, he did not know what he was doing, and that drugs or other substances may have affected his actions," the statement said, according to Pitchfork. "Without the results of toxicology tests, we do not know what was going on with Chris - or if any substances contributed to his demise."
Cornell was pronounced dead on Thursday morning after police found him on the floor of his hotel room's bathroom just hours after he performed a concert in Detroit.
In a separate statement, Cornell's wife, Vicky Cornell, also said the medication may have played a role in his death.