If I am not mistaken wasn't that the one where he was a famous Lawyer and she worked for a State Congressman? Also if I remember correctly the only reason he was caught is because his brother finally broke down and said that his brother had him help dump the cooler and when they dumpted it the lid came open and he saw a leg.
The case you're thinking of was the murder of Anne Marie Fahey, scheduling secretary to Gov Tom Carper of Delaware. Sad case.
You're homing in on it, Spunky. Good memory!