Years after the unsolved murder of insurance salesman Bob Eidman in Missouri, a DNA test reveals a surprising suspect who was never on police radar. The 20/20 episode 'File M for Murder' explores the case, focusing on the initial suspicions surrounding Eidman's wife, Diane, and the subsequent investigation that uncovered a shocking truth.
Bob Eidman was concealing many secrets about his personal life and his business; ultimately, it was a stroke of bad luck that led to his demise.
The community was shaken, as this was St. Charles' first murder of 2007, in a city that averaged just one or two homicides per year. "That's my friend," Dana told "20/20." "I wanted to make sure he was OK. I remember locking up my office. I had a client in there, and she saw how distraught I was. And I'm just in the car, just all the way there saying, No, no, no, no, no, no, no, no, no, no Bob, no Bob."As investigators searched the area for security camera video footage of potential suspects, they came across a grocery store just a few doors down from Bob's office.
Kaiser observed that Diane seemed forgetful at one point she couldn't remember her own Social Security number. The detective also inquired about any life insurance policies, and Diane said that she had one small $5,000 policy through her workplace."One of the first things she says is, 'Don't take this as a confession or anything, but ... this happened to my dad, too,'" Kaiser said.
Police investigating Eidman's murder soon discovered that the small insurance policy Diane had initially told investigators about was not the only policy Diane had. With Eidmans sudden death, Diane was set to receive more than $300,000 in life insurance. Eidmans lover told police that he and Eidman had been dating and that they used to meet in motels together.
Diane was never charged in Eidmans murder and the case went cold for months until police received a call from the DNA unit. In the earlier stages of the investigation police notice Eidman's wallet went missing. So detectives confiscated his pants and swabbed his back pocket in case the culprit left behind DNA.
MURDER COLD CASE DNA SUSPECT INSURANCE SALESMAN
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