CHICAGO (CBS) — A Romeoville widow believes her husband died because he received a tainted kidney transplant.

She’s not suing yet but a lawyer for Kathleen Murray has filed a court petition, asking for more information about the kidney that her husband received in a transplant at Loyola University Medical Center just over a year ago.

She says it was infected with fungal meningitis.

Gerald Murray Sr., a retired U.S. Marshal and Chicago police officer, died last May, about seven months after the kidney was implanted.

Alison Smith with Gift of Hope, tells the Southtown Star that every donated organ is checked for common risks like HIV and hepatitis.

However, she says, if they tried to test for every known disease, no one would ever be transplanted.

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