(CNN) -- The parents of American Shane Todd, found hanging in his Singapore apartment last June, tell CNN they may exhume their son's body to conduct an autopsy in the United States. Todd's mother Mary says an exhumation may be the only way to prove "for sure" the family's contention that he was murdered. The Todds walked out of the Singapore inquiry into their son's death earlier this week, saying, "We've lost faith in the process" and Singapore's inquiry process was "pre-determined" to conclude their son's death was a suicide, and that police and investigators never considered evidence that may suggest Todd was murdered.
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Parents of American Shane Todd walk out of Singapore inquiry into engineer's death
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Mother says an exhumation may be only way to prove family's contention he was murdered
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The Todds contend their son was murdered because of his knowledge of research project
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The companies IME and Huawei assert no project agreement was concluded
He did not examine Todd's body and came to his initial conclusions on the basis of photographs taken by the family just before the funeral and @placeholder's autopsy report.